Sorting by Date-and-Time columns does not change the order - only reverts to original order

Describe the bug

Columns with Date and Time only sort to the original order. Requests for Ascending or Descending order appear to be ignored.

To Reproduce Steps to reproduce the behavior:

1. Obsidian v0.12.15
2. Sortable 0.2.0 installed
3. Grab this table:

| Order | File          | Dates            | Dir         |
| ----- | ------------- | ---------------- | ----------- |
| 1     | Table Sorting | 2021-09-29-22:38 | Tables      |
| 2     | Unwanted Tags | 2021-09-24-20:28 | Tag Testing |
| 3     | Obsidian      | 2021-09-25-20:20 | Tag Testing |
| 4     | Tag File 6    | 2021-09-24-20:11 | Tag Testing |
| 5     | Tag File 5    | 2021-09-22-20:11 | Tag Testing |
| 6     | Tag File 4    | 2021-09-24-19:58 | Tag Testing |

1. Sort each of Order, File and Dir columns by each of Ascending, Descending, Original to confirm that plugin is working as expected.
2. Sort Dates column by each of Ascending, Descending, Original - it only ever reverts to original order, whilst cycling through all the 3 icons. In other words, sorting by Date-and-Time columns seems broken,

Expected behavior

Sorting on Dates and Times works for ascending and descending orders

Video Demo

Please Note: When I recorded this, I only had Sortable enabled. However, the behaviour is the same when Advanced Tables 0.13.0 is installed and enabled

https://user-images.githubusercontent.com/4840096/135479491-4e92e8b7-92a8-4ecd-a7cf-17d3910eafda.mov

Desktop (please complete the following information):

• macOS Catalina 10.15.7
• Obsidian Version: v0.12.15
• Sortable 0.2.0 installed

Additional context

Can’t think of anything. Just wanted to say “thanks” for a really helpful plugin!

[alexandru-dinu]

down the line it would be nice for the sorting to “just work”

I fully agree – minimal tinkering on user’s part!

I will research more into how Wikipedia achieves this, since it’s the main source of inspiration for the plugin.

I appreciate the feedback and I am glad that people find Sortable useful!

[claremacrae]

Yes, down the line it would be nice for the sorting to “just work” but I totally realise the nature of maintaining open-source projects and not everything can be done - I’ve been there myself on C++ projects…

For now, this is already really useful.