Distance sorting not working properly

Describe your problem!

A user contacted us that after upgrading to 2022.02.13 he has problems sorting caches by distance.

I am a bit clueless as the screenshots really seem to show a bug:

Any idea how to debug or get more info? Or even an idea what might go on here?

How to reproduce?

Unclear

Actual result after these steps?

No response

Expected result after these steps?

No response

Reproducible

Unclear

c:geo Version

2022.02.13

System information

c:geo version: 2022.02.13

Device:
-------
- Device type: Redmi Note 9S (curtana_eea, Redmi)
- Available processors: 8
- Android version: 11
- Android build: RKQ1.200826.002 test-keys
- Screen resolution: 1080x2168px (392x788dp)
- Pixel density: 2.75
- System font scale: 1.0 / used scale: 1.0
- Sailfish OS detected: false
- Google Play services: enabled - 21.48.15 (150400-414534850)

Sensor and location:
-------
- Low power mode: inactive
- Compass capabilities: yes
- Rotation vector sensor: present
- Orientation sensor: absent
- Magnetometer & Accelerometer sensor: present
- Direction sensor used: rotation vector

Program settings:
-------
- Settings: v9, Count:157
- Set language: nl_NL (system default)
- System date format: dd-MM-y
- Time zone: GMT+01:00
- Debug mode active: no
- Last backup: 31 jan. 07:26
- Routing mode: Off
- Live map mode: true
- OSM multi-threading: false / threads: 1
- Map: Google: Map
  - Id: cgeo.geocaching.maps.google.v2.GoogleMapProvider$GoogleMapSource
  - Atts: none
  - Theme: none

Filters:
-------
- Hide waypoints: -
- LIVE: Geen ([:inconclusive=false:advanced=true])
- OFFLINE: Geen ([:inconclusive=false:advanced=true])

Stored Filters (#5):
- Gearchiveerd: [Gearchiveerd:inconclusive=false:advanced=true]AND(status:found_no:exclude_active:exclude_disabled))
- Meer dan 85 km: [Meer dan 85 km:inconclusive=false:advanced=true]AND(distance:87.0:-:coord=-:use_current_pos=true))
- NFont NSaved: [NFont NSaved:inconclusive=false:advanced=true]AND(status:found_no:exclude_disabled:exclude_archived;type:TRADITIONAL))
- Nfound NSaved Tradies: [Nfound NSaved Tradies:inconclusive=false:advanced=true]AND(status:found_no:stored_no:exclude_disabled:exclude_archived;type:TRADITIONAL))
- NietOpgeslagen Tradies: [NietOpgeslagen Tradies:inconclusive=false:advanced=true]AND(type:TRADITIONAL;status:found_no:stored_no:exclude_disabled:exclude_archived;distance:-:204.0:coord=-:use_current_pos=true;difficulty_terrain:d=1.0:d=4.0:t=1.0:t=4.0))

Services:
-------
- Geocaching sites enabled:
   geocaching.com: Logged in (Ingelogd) / PREMIUM
   Geocaching.com Adventure Lab
- Geocaching.com date format: dd-MM-yyyy
- Routing: external / BRouter installed: false
- Installed c:geo plugins:  none

Permissions & paths:
-------
- Fine location permission: granted
- Write external storage permission: granted
- System internal c:geo dir: /data/user/0/cgeo.geocaching (73,1 GB free) v3 internal isDir(7 entries)
- Legacy User storage c:geo dir: /data/user/0/cgeo.geocaching (73,1 GB free) v3 internal isDir(7 entries)
- Geocache data: /storage/emulated/0/Android/data/cgeo.geocaching/files/GeocacheData (73,1 GB free) v3 external non-removable isDir(4257 entries)
- Internal theme sync (is turned off): /data/user/0/cgeo.geocaching/MapThemeData (73,1 GB free) v3 internal isDir(0 entries)
- Public Folders: #11
  - BASE: /cgeo (User-Defined)[/cgeo[DOCUMENT#0:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo, Av:true, files:>=25, dirs:>=10, totalFileSize:>=3,9 GB, free space: 73,1 GB, files on device: 13511677)
  - OFFLINE_MAPS: /cgeo (User-Defined)[/cgeo[DOCUMENT#0:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo, Av:true, files:>=25, dirs:>=10, totalFileSize:>=3,9 GB, free space: 73,1 GB, files on device: 13511677)
  - OFFLINE_MAP_THEMES: /cgeo (User-Defined)[/cgeo[DOCUMENT#0:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo, Av:true, files:>=25, dirs:>=10, totalFileSize:>=3,9 GB, free space: 73,1 GB, files on device: 13511677)
  - LOGFILES: /cgeo/logfiles (Default)[/cgeo/logfiles[PERSISTABLE_FOLDER(BASE)#1:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::/logfiles]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo%2Flogfiles, Av:true, files:1, dirs:0, totalFileSize:24,9 KB, free space: 73,1 GB, files on device: 13511677)
  - GPX: /cgeo/gpx (Default)[/cgeo/gpx[PERSISTABLE_FOLDER(BASE)#1:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::/gpx]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo%2Fgpx, Av:true, files:15, dirs:0, totalFileSize:1004,8 MB, free space: 73,1 GB, files on device: 13511677)
  - BACKUP: /cgeo/backup (Default)[/cgeo/backup[PERSISTABLE_FOLDER(BASE)#1:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::/backup]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo%2Fbackup, Av:true, files:4, dirs:2, totalFileSize:261,1 MB, free space: 73,1 GB, files on device: 13511677)
  - FIELD_NOTES: /cgeo/field-notes (Default)[/cgeo/field-notes[PERSISTABLE_FOLDER(BASE)#1:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::/field-notes]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo%2Ffield-notes, Av:true, files:1, dirs:0, totalFileSize:0 B, free space: 73,1 GB, files on device: 13511677)
  - SPOILER_IMAGES: /cgeo/GeocachePhotos (Default)[/cgeo/GeocachePhotos[PERSISTABLE_FOLDER(BASE)#1:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::/GeocachePhotos]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo%2FGeocachePhotos, Av:true, files:0, dirs:0, totalFileSize:0 B, free space: 73,1 GB, files on device: 13511677)
  - ROUTING_BASE: /cgeo/routing (Default)[/cgeo/routing[PERSISTABLE_FOLDER(BASE)#1:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::/routing]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo%2Frouting, Av:true, files:7, dirs:1, totalFileSize:81,2 KB, free space: 73,1 GB, files on device: 13511677)
  - ROUTING_TILES: /cgeo/routing/segments4 (Default)[/cgeo/routing/segments4[PERSISTABLE_FOLDER(ROUTING_BASE)#1:p-content://com.android.externalstorage.documents/tree/primary%3Acgeo::/routing/segments4]] (Uri: content://com.android.externalstorage.documents/tree/primary%3Acgeo/document/primary%3Acgeo%2Frouting%2Fsegments4, Av:true, files:0, dirs:0, totalFileSize:0 B, free space: 73,1 GB, files on device: 13511677)
  - TEST_FOLDER: [Legacy]/data/user/0/cgeo.geocaching/files/unittest (Default)[/data/user/0/cgeo.geocaching/files/unittest[FILE#1:p-file:///data/user/0/cgeo.geocaching/files::/unittest]] (Uri: file:///data/user/0/cgeo.geocaching/files/unittest, Av:true, files:0, dirs:0, totalFileSize:0 B, free space: 73,1 GB, files on device: -1)
- Map render theme path:
- PersistedDocumentUris: #1
- UNUSED_TRACK: null
- Persisted Uri Permissions: #1
  - content://com.android.externalstorage.documents/tree/primary%3Acgeo (19 apr. 2021 17:24):RW
- Database: /data/user/0/cgeo.geocaching/databases/data (v98, Size:124,1 MB) on system internal storage

--- End of system information ---

Additional Information

Support ticket 259893

[Lineflyer]

I asked the user a few questions to potentially find a clue on this:

• Is this faulty sorting stable or does it change while viewing the list or e.g. when scrolling down and up again?
• Do you also have this problem if you reverse the sorting (by selecting “distance” again)?
• Do you have the same problem if you set the sorting to “Automatic” (which should also be distance sorting)?
• Does it also happen for other sortings (e.g when sorting by favorite points)?

[eddiemuc]

Fixed with PR #12949