Previously I used `CTX_copy` to create a mutable copy of the context in
order to set its area and region fields to temporary variables. This was
a tradeoff to avoid casting away `const` for `bContext`.
However, `bpy.context` is set to this new temporary value, which is fine
for a single `wm_draw_update` pass, but in the next main loop,
`bpy.context` is still set to this value, which was freed at the
end of `property_search_all_tabs`. It would be possible to reset the
`bpy.context` variable ath the end of the function, but this patch
contains an alternate solution: just don't copy the context. It looks
like this was the only use of `CTX_copy` anyway, maybe for good reason.
Differential Revision: https://developer.blender.org/D9216