cubicweb-collaboration #10648990 Cloned collaborative entity is in an incoherent state if created with frozen=True [open]

In the case where frozen is set to True on clone creation, can_write is set for the creator/ owners anyway, which is not coherent with frozen=True.

We should deny the possibility to create a collaborative entity with frozen=True, because it is meaningless.

We should also modify the 'copy' view (linked from the copy action of the cube) to set the frozen value to False and hide it.

done in0.2.1
closed by<not specified>