Upgrade fails on Remove shares of a users root folder

reported_bug
9.1.x
help

#1

Bug report: https://github.com/owncloud/core/issues/25621

My upgrade from 9.0.3 to 9.1.0 failed on the Remove shares of a users root folder: InvalidArgumentException: $absolutePath must be relative to "files"


#2

Then let's keep the discussion thereā€¦


#3