Running PySolFC on MacOS, the application does not close using Cmd-Q. Instead, it always reverts the game to the startup default (Klondike). This also happens from a system Shut Down, which means that if PySolFC is running then Shut Down doesn't work.
PySolFC has to be closed from its exit button on its toolbar, or from Force Quit (Cmd-Alt-Esc).
This has been true across all versions of PySolFC and all MacOS versions since March 2012. I assume other people see the same problem?