Block content styles are not applied when an embedded entity does not use layout_builder

Grimreaper → credited pdureau → .

Thanks to have found th bug and providing a MR.

Tests needs to be fixed and new ones created.

I will try to do that or to delegate to someone from another team.

Here a patch file from the MR for easier Composer udage.

Automatically closed - issue fixed for 2 weeks with no activity.