Please build gpaste against libmutter-2-dev for the ongoing mutter
Ubuntu has a diff you can use with trivial modification:
Please do this upload now with urgency=high to not delay the transition.
If you aren't able to do this upload today or tomorrow, I can upload
an NMU for you.
I apologize for not filing this bug sooner. I forgot about gpaste's
Build-Dependency on mutter.