I have a custom entity type which is instance of RevisionableContentEntityBase. Because I don't need "published" property and related functionality but I need content moderation and scheduler for custom entity type at the same type.
Example,
final class MyCustomEntity extends RevisionableContentEntityBase implements MyCustomEntityInterface {}
As result I get AssertionError: assert($entity instanceof EditorialContentEntityBase) in assert() (line 559 of modules/contrib/scheduler_content_moderation_integration/scheduler_content_moderation_integration.module).
In my opinion hook shouldn't break entity save process if some condition isn't met.
My proposal is to replace assert($entity instanceof EditorialContentEntityBase); with if (!$entity instanceof EditorialContentEntityBase) {
Needs work
3.0
Code
Committed fix as described in the proposed solution.
Please review.
Attach a patch file with the same fix to use on my site and don't be dependent from MR and for others to get quick fix if they face the same issue.