no, as mentioned in the update… (and known issues)
the update process removes patches, so back them up beforehand 
they will work fine if you put them back.
(note: norns mother had a few of its own issues, but I think these have all been resolved now)
Ive ‘fixed’ this update process in the next release.
however, the way apt works means that the next upgrade will do the same, but after that it will be permanently fixed. (unfortunately, not something I can avoid… apt will run the ‘old’ script before it gets a chance to run the ‘fixed’ script)
(I plan to put out that new release, either today or tommorow … want to get one thing tested, then i’ll release)
wiki explains how to uninstall.