$ git clone -n https://src.fedoraproject.org/rpms/python-looseversion.git /var/lib/mock/f45-build-31388-652/root/chroot_tmpdir/scmroot/python-looseversion
Cloning into '/var/lib/mock/f45-build-31388-652/root/chroot_tmpdir/scmroot/python-looseversion'...
$ git fetch origin 3a6656c40a87b541ca5f9f944e8490600e7e1a01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-looseversion
 * [new ref]         3a6656c40a87b541ca5f9f944e8490600e7e1a01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a6656c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild