initialValue defaultValue props no longer work in edit views

[jtomaszewski]

What you were expecting:

Just as it works in Create, inputs placed inside of a SimpleForm in Edit view, when they have a initialValue / defaultValue prop, I'd expect that value to be used (if the initial value for the given source is null or undefined).

Currently, that default value is shown, but only for first ~10-50ms of form being rendered - and then is set back to undefined.

Steps to reproduce:

Go to https://codesandbox.io/s/cranky-voice-psf4s . See that the default value is not respected in PostEdit view, but it is respected in PostCreate view.

Environment

• React-admin version: 3.14.3

[fzaninotto]

Confirmed, thanks for the report.

[fzaninotto]

I managed to track this regression to version 3.13.3, so it was probably introduced by #6005