You can clone with
HTTPS or Subversion.
Rght click and choose Move to desktop right works just fine with one window. If I try to move another using the same way, they all go back to desktop 1 and the 3rd desktop closes.
Can you confirm that this only happens when the window you're moving in the only one opened on the orignal workspace ?
You can close this. I guess it's working as intended. Kind of stupid imo though.
Closing this issue.
Note: When we implement Expo and workspace management this won't happen anymore as Cinnamon/GNOME won't create/delete workspaces on your behalf.