- Do not try to enable, restart or stop vboxadd-service in the main package's pre/post (un)install scripts, it is part of guest-tools so this only causes error messages

I don't think this warrants an update, as it shouldn't cause problems (just error messages in the zypper output) and there's no bug report about it anyway AFAIK.
I just want to make sure that this is fixed in the next 13.2 update should there ever be one.

Please also note that this problem only exists in the 13.2 package, not in the other versions (Virtualization, Factory, 13.1, 42.1, 42.2)