`sfdx force:source:push` will not push changes to detail object alone in M-D relationship

Summary

Given an object Project__c with a master-detail relationship to Account (relationship field name Account__c), with a local project tree and scratch org in sync with one another:

Make a local change to the file Project__c.object, such as changing the label of the Name field.

Issue

$ sfdx force:source:push

Receive in response

PROJECT PATH ERROR ─────────────────────────────────────────────────────────────────── force-app/main/default/objects/Project__c/Project__c.object-meta.xml Cannot set sharingModel to ControlledByParent on a CustomObject without a MasterDetail relationship field

Note that the sharingModel is set to ControlledByParent and the master-detail relationship field is present both in the source tree and in the scratch org - it’s just not being pushed in this operation because that field is not changed.

SFDX CLI Version: confirmed in 6.50.0 and 6.51.1 (linux-x64) node-v10.15.0

OS and version: GalliumOS (Ubuntu derivative) 16.04

[jefersonchaves]

Hi, @clairebianchi: would you happen to know where this is being tracked?

[yippie]

Why is this closed? I am hitting this issue as well that if any change happens to the object definition, push fails unless you also update the master detail field so it has changes as well.

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