Hi, It looks like current git (6ba2a577fbcb569034c70bd62bae3e8b5942612e) version of python-bugzilla has bug. # ./b query --flag 'devel_ack+' Server error: <Fault 53: 'value0-0-0 is not a valid parameter for the Bugzilla::Bug::match function.'> Any ideas how to solve this problem? Regards, Honza