$ git clone -n https://src.fedoraproject.org/rpms/python-mergedeep.git /var/lib/mock/f45-build-31515-652/root/chroot_tmpdir/scmroot/python-mergedeep
Cloning into '/var/lib/mock/f45-build-31515-652/root/chroot_tmpdir/scmroot/python-mergedeep'...
$ git fetch origin 6c07da4450f9a95301dcd4e1c05dac6dc848d628:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mergedeep
 * [new ref]         6c07da4450f9a95301dcd4e1c05dac6dc848d628 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c07da4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild