$ git clone -n https://src.fedoraproject.org/rpms/irstlm.git /var/lib/mock/f31-build-53953-27928/root/thebuilddir/tmp/scmroot/irstlm
Cloning into '/var/lib/mock/f31-build-53953-27928/root/thebuilddir/tmp/scmroot/irstlm'...
$ git reset --hard fc64249657acdd7ed0c940929af3d9e74d2ce30d
HEAD is now at fc64249 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild