tip fixed - broken patch backed out

[Frédéric Buclin]

I backed out the broken patch from bug 305506 a few minutes ago. Group 
inheritance (and maybe more) was broken on the tip.

We (the QA team) cannot confirm whether this patch produced dataloss or 
not. On my installation, it seems to be the case (unfortunately), but 
some other testers of the QA team couldn't confirm.

To make sure there are no other regressions on the tip, 2.20 and 2.18.4, 
we will run some additional tests for the next 24-48 hours, where *no 
checkin* will be accepted at all, even on the *trunk* (unless justdave 
overrides my decision)! We don't want new emergency releases next week. :-/


LpSolit