$ git clone -n https://src.fedoraproject.org/rpms/gtkglext.git /var/lib/mock/f40-build-796474-140694/root/chroot_tmpdir/scmroot/gtkglext
Cloning into '/var/lib/mock/f40-build-796474-140694/root/chroot_tmpdir/scmroot/gtkglext'...
$ git fetch origin a3ae49869ff0ad462ed1765e551088e18961dd9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtkglext
 * [new ref]         a3ae49869ff0ad462ed1765e551088e18961dd9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3ae498 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild