This was reported for duplicating particle systems, then using F9 to
enable the 'Duplicate Settings' option (see T83317).
In this case, the operator gets the particle_system from (buttons)
context and if none can get found will duplicate all settings instead.
The reason why none gets found here is that buttons_context() doesnt
have a valid path when called from F9/SCREEN_OT_redo_last, path is
cleared when global undo does a file-read which clears the path (see
lib_link_workspace_layout_restore). It can be recomputed though to be
valid even from redo_last (at least when in the Properties Editor).
This was likely causing other operators (relying on buttons context)
from the Properties Editor to fail as well.
Fixes T83317
Maniphest Tasks: T83317
Differential Revision: https://developer.blender.org/D9825
3834dc2f7b