$ git clone -n https://src.fedoraproject.org/rpms/lightdm-gtk.git /var/lib/mock/f40-build-797097-141063/root/chroot_tmpdir/scmroot/lightdm-gtk
Cloning into '/var/lib/mock/f40-build-797097-141063/root/chroot_tmpdir/scmroot/lightdm-gtk'...
$ git fetch origin aa2b258d4a6101dd9308ac279ffa173bfe5c3a6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lightdm-gtk
 * [new ref]         aa2b258d4a6101dd9308ac279ffa173bfe5c3a6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa2b258 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild