$ git clone -n https://src.fedoraproject.org/rpms/python-micawber.git /var/lib/mock/f45-build-31540-652/root/chroot_tmpdir/scmroot/python-micawber
Cloning into '/var/lib/mock/f45-build-31540-652/root/chroot_tmpdir/scmroot/python-micawber'...
$ git fetch origin ede9c1f43157f1ce041467bd44c20ef25d010946:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-micawber
 * [new ref]         ede9c1f43157f1ce041467bd44c20ef25d010946 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ede9c1f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild