Philipp Oeser
4eb5163b18
In the editmode sidebar, pasting a particular vertex's weight in a
single group was not behaving the same as copying for all groups [in
that the former dis not copy to unassigned vertices whereas the later
did copy to unassigned vertices].
This behaves like this since the introduction in {rB70fd2320c8d2}, but
there does not seem to be a good reason for this?
Now make this consistent and use `BKE_defvert_copy_index` in both cases
(instead of earlying out if unassigned, this will make sure this will
also copy to unassigned).
Maniphest Tasks: T98459
Differential Revision: https://developer.blender.org/D15062