Fields plugin not compatible with GLPI entities

[blippercop]

Using GLPI with multiple entities is not working for the fields plugin.

Company > Unit 1
Company > Unit 2
Company > Unit 3

When the field is created on "Company" level with inheritance, all units can see the fields. However when one unit requires a second fields (specifically for the unit with Insertion in the form (before save button)) it is not working because of an error:

You cannot add several blocks with type 'Insertion in the form' on same object

But when you create the fields for each unit (instead of Company level with inheritance) you get the same error. This should be possible as it is still "one" form but for each unit.

[CorentinS6]

Hello,
+1
see #751 #789 #744

[blippercop]

Thank you for the references. Unfortunately the "hide block" is no workaround as it will hide the whole block and its not possible to create another one.
As the issues are a bit older there seem to be no solution near.
Any experiences what will happen when the check is bypassed?