gparted should not mask .mount units
Forwarding this from https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=948739
I had brought up the issue on the systemd-devel mailing list and they said that gparted should not be masking mount units, but instead should be taking out a bsd lock on the block device in order to prevent other parts of the system from mucking about with it while gparted is in the process of making changes.
In other words, instead of having the wrapper shell script mask all mount units, it should just take a bsd lock on the one device it is operating on when it starts to commit the operations, then release the bsd lock when it finishes.