This update contains a backward incompatible change. The slogin symlink to ssh is gone, because the upstream Makefile neglects to create it, same as it neglects to create the slogin.1 man page. This is new in 7.2p1, but it's not mentioned in the upstream release notes either. Installing this package potentially breaks lots and lots of aliases, shell scripts, and GUI keyboard shortcuts.
I spoke too soon. There's a bug in this version in that it stores Window IDs in plasma-org.kde.plasma.desktop-appletsrc, rather than application names. For details see my latest entry in BZ 1282417.
Thanks for the update but it only works marginally better. Screen 2 is now fully graphical (nor more boot screen residue), but it's invariably just a copy of screen 1, with dialog- and mouse-sharing.