min_num conflicts with deletions of inlines

[MarkBird]

Hopefully I can explain this clearly:

On a nested admin page set up like this

ParentAdmin
-- inline ChildAdmin
---- inline GrandChildAdmin

where Child is a many to many of Parent, and GrandChild is a many to many of Child,

that has min_num = 1 on GrandChildAdmin.

In this case, GrandChildAdmin.min_num = 1 was added after existing data was populated. Some of the existing data will have Child records that have no GrandChildren.

User tries to edit a Parent record that has Child records with no GrandChildren and delete a Child record with no GrandChildren. On save, the delete fails, with the error message This Field Is Required on GrandChildren.

If user adds a GrandChild just to be able to delete the Child, this also errors on save because the Child record is deleted first, then the insert into the Many To Many through table fails with a foreign key violation.

Can we ignore min_num validation on deletes?