$ git clone -n https://src.fedoraproject.org/rpms/mercator.git /var/lib/mock/f33-build-279750-51694/root/chroot_tmpdir/scmroot/mercator
Cloning into '/var/lib/mock/f33-build-279750-51694/root/chroot_tmpdir/scmroot/mercator'...
$ git reset --hard b9c88c30ee243aae22712b3157e95ffb329804f4
HEAD is now at b9c88c3 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild