Copy and move do not honor passive pane directory as targets

Functions sunrise-do-copy and sunrise-do-rename, contrary to their expected behavior, offer to copy and to move files always to the home directory rather than the directory that the passive pane is showing.

I originally believed this was due to interference with package helm, but that's not the case. The bug appears whether or not helm is active.

This is under Emacs 27.2, compiled from SRPMS, running on Linux x86_64.