$ git clone -n https://src.fedoraproject.org/rpms/python-rpmautospec-core.git /var/lib/mock/f45-build-32865-664/root/chroot_tmpdir/scmroot/python-rpmautospec-core
Cloning into '/var/lib/mock/f45-build-32865-664/root/chroot_tmpdir/scmroot/python-rpmautospec-core'...
$ git fetch origin 90daac5775f8983b29c308ba55a10e7a34f529ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rpmautospec-core
 * [new ref]         90daac5775f8983b29c308ba55a10e7a34f529ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90daac5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild