$ git clone -n https://src.fedoraproject.org/rpms/libgsf.git /var/lib/mock/f40-build-785076-133777/root/chroot_tmpdir/scmroot/libgsf
Cloning into '/var/lib/mock/f40-build-785076-133777/root/chroot_tmpdir/scmroot/libgsf'...
$ git fetch origin 3bfb9065fde448d91520bc0bdcb1e10309760577:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgsf
 * [new ref]         3bfb9065fde448d91520bc0bdcb1e10309760577 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3bfb906 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild