batch-copy items is buggy

Hi there,

batch-copy items is buggy:

reproduce:
- in backend-item-list, select multiple items,
- at screen top, select batch > update/copy/move
- in batch-options-screen,
-- 1) select "copy",
-- 2) change main category

expected:
- item copies should be in newly selected category

reality:
- item copies still are in old category

[setup]
J 4.3.4
FC 4.2.1

yes bug confirmed can you post it in github for resolution ?

ok, done.

thanks we will do our best