$ git clone -n https://src.fedoraproject.org/rpms/kf5-kcontacts.git /var/lib/mock/f31-build-65287-29675/root/thebuilddir/tmp/scmroot/kf5-kcontacts
Cloning into '/var/lib/mock/f31-build-65287-29675/root/thebuilddir/tmp/scmroot/kf5-kcontacts'...
$ git reset --hard c8ce341369c84ad271101f13c0f1649363d754b8
HEAD is now at c8ce341 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild