Comment # 5 on bug 1044447 from Oliver Kurz

What is "supported" anyway? IMHO it's worth to invite testers to try this if
they care. In the end, why not? If you like we can of course just remove it
from the google doc spreadsheet. I added a comment to the cell description
though stating that conflicts should be expected and need to be resolved
manually. I guess we can just expect conflicts on downgrade (on openSUSE) and
of course could document in a wiki page but that will probably be permanently
out of date. Better to have an openQA test to "document dynamically"?