Filter not displayed with a compound source

[nacimgoura]

Hello, I have a problems when I use the compound names (e.g. element.title) as source in filter inputs since I updated react-admin.
The input doesn't display and I have no errors in the console.

Steps to reproduce:
Add compound name in source for input filter

• Sandbox
  https://codesandbox.io/s/modest-rgb-ehvhd

Environment

• React-admin version: 3.3.1
• Last version that did not exhibit the issue (if applicable): 2.9.8
• React version: 16.13.0
• Browser: Chrome
• Stack trace (in case of a JS error): No stack trace

[JulienMattiussi]

I reproduced your issue.
Thanks for reported it.

[Edit]:
The previous upgrade to have persisting empty filters had an impact on composed sources filters.
The fix will be proposed soon