This works on selected_editable_objects, so no active object mandatory.
After deletion of the active object and using slection tools such as
e.g. box select, the lack of an active object would prevent this
operator from being called without good reason.
Also cannot think of any other existing poll that would really make
sense (Editor type, ...).
ref T68975
Maniphest Tasks: T68975
Differential Revision: https://developer.blender.org/D6773
03000549fb