$ git clone -n https://src.fedoraproject.org/rpms/python-opytimark.git /var/lib/mock/f45-build-31809-655/root/chroot_tmpdir/scmroot/python-opytimark
Cloning into '/var/lib/mock/f45-build-31809-655/root/chroot_tmpdir/scmroot/python-opytimark'...
$ git fetch origin 845ef3cc1e62c2e49bc4641dfd9ca7a6135a2f5b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-opytimark
 * [new ref]         845ef3cc1e62c2e49bc4641dfd9ca7a6135a2f5b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 845ef3c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild