$ git clone -n https://src.fedoraproject.org/rpms/perl-Params-Coerce.git /var/lib/mock/f45-build-25657-612/root/chroot_tmpdir/scmroot/perl-Params-Coerce
Cloning into '/var/lib/mock/f45-build-25657-612/root/chroot_tmpdir/scmroot/perl-Params-Coerce'...
$ git fetch origin d1939faad5826e73f32e572fe1f7a3f89eaef859:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Params-Coerce
 * [new ref]         d1939faad5826e73f32e572fe1f7a3f89eaef859 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1939fa Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild