$ git clone -n https://src.fedoraproject.org/rpms/libglibutil.git /var/lib/mock/f45-build-16284-484/root/chroot_tmpdir/scmroot/libglibutil
Cloning into '/var/lib/mock/f45-build-16284-484/root/chroot_tmpdir/scmroot/libglibutil'...
$ git fetch origin d49ce7dd32b73c85ae67ab40eab6994a18fe29b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libglibutil
 * [new ref]         d49ce7dd32b73c85ae67ab40eab6994a18fe29b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d49ce7d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild