Fix(Container): save entites_id manually from container type 'dom'

[stonebuzz]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes !36465

When a container is defined as type dom (displayed before the save button), the data entry process differs from that in tab mode. It is necessary to manually add the entities_id to ensure it is recorded in the container's table

Screenshots (if appropriate):