Inst not used as union

[Scott Tringali]

Bert Wesarg wrote:

> Ok, so only bugs (at best reported in SF) that caused regressions
> chould be committed to BETA-5-6, the rest to MAIN.

Right.  Otherwise 5.6 will go on and on...

> Do we merge these bugs back to MAIN, only after BETA-5-6 is closed?

Yes, but "we" don't have to all do it.  I'll do the merge later on, and 
all everyone else will need to do is update.