$ git clone -n https://src.fedoraproject.org/rpms/creds.git /var/lib/mock/f45-build-5340-338/root/chroot_tmpdir/scmroot/creds
Cloning into '/var/lib/mock/f45-build-5340-338/root/chroot_tmpdir/scmroot/creds'...
$ git fetch origin 87a3c680e99b671244ae9d24f4adf578f2d7e25a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/creds
 * [new ref]         87a3c680e99b671244ae9d24f4adf578f2d7e25a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87a3c68 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild