$ git clone -n https://src.fedoraproject.org/rpms/glib.git /var/lib/mock/f45-build-11160-428/root/chroot_tmpdir/scmroot/glib
Cloning into '/var/lib/mock/f45-build-11160-428/root/chroot_tmpdir/scmroot/glib'...
$ git fetch origin 4c021c0221f901b35990631cb9ec5a830e3da426:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/glib
 * [new ref]         4c021c0221f901b35990631cb9ec5a830e3da426 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c021c0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild