setup 2.920 release candidate - please test

[Christian Franke]

Achim Gratz wrote:
> Christian Franke writes:
>> This version aborts if "Sync" setting is reverted to "Best".
> If the abort goes away when building setup with the previous version of
> libsolv then you might have found an easier reproducer for a bug I'm
> chasing…  Running it in gdb should get you a SIGSEGV in
> solver_addduprules in this case.

Indeed:

Thread 1 received signal SIGSEGV, Segmentation fault.
0x00007ff60bb42a19 in solver_addduprules (solv=<optimized out>, 
addedmap=<optimized out>) at 
/usr/src/debug/mingw64-x86_64-libsolv-0.7.22-1/src/rules.c:2125
...