Alt click works perfect to disable restriction toggle (hide/selection
toogle) on selected object tree elements from outliner. But fails when
re-enabling them. This is because `screen_ctx_selected_editable_objects`
returns a list of selectable bases. When above two restriction toggles
are disabled, `selection` flag is cleared from resepective bases. To avoid
such situation, handle outliner case separately inside
`UI_context_copy_to_selected_list ()`, store list of objects that are selected
in outliner (i.e. `TSE_SELECTED` flag is set).
Also added few findings as comments in #133459
Pull Request: https://projects.blender.org/blender/blender/pulls/133469
52caedb19e