$ git clone -n https://src.fedoraproject.org/rpms/glib.git /var/lib/mock/f39-build-1442068-32431/root/chroot_tmpdir/scmroot/glib
Cloning into '/var/lib/mock/f39-build-1442068-32431/root/chroot_tmpdir/scmroot/glib'...
$ git fetch origin bb59b73b0d60c9f06de9aa0dbb904efc779ba81c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/glib
 * [new ref]         bb59b73b0d60c9f06de9aa0dbb904efc779ba81c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb59b73 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild