https://bugzilla.novell.com/show_bug.cgi?id=787382
https://bugzilla.novell.com/show_bug.cgi?id=787382#c1
--- Comment #1 from Michael Schröder mls@suse.com 2012-10-30 14:35:44 UTC --- That's because I consider all installed pattern packages that have the "isvisible" flag set userinstalled. I need to do this because the zypp history file doesn't contain patterns. ;-(