Comment 3 for bug 1651771

To fix this behavior it is needed either to add priorities to fuel-qa's UPDATE_FUEL_MIRROR or raise version of packages intended for testing (not for publishing!).

I can't decide about the complexity of the first option...

Second option can be implemented by adding one more Perestroika parameter to override package epoch (only for GERRIT_CHANGE_STATUS=NEW). Then we can set some big epoch value for all packages built by public packaging CI, and those packages will always beat MOS packages.