$ git clone -n https://src.fedoraproject.org/rpms/kf5-kwindowsystem.git /var/lib/mock/f40-build-2292711-56152/root/chroot_tmpdir/scmroot/kf5-kwindowsystem
Cloning into '/var/lib/mock/f40-build-2292711-56152/root/chroot_tmpdir/scmroot/kf5-kwindowsystem'...
$ git fetch origin 6f62074c1f258fe95b5c026aba3d5b91b6f81944:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kwindowsystem
 * [new ref]         6f62074c1f258fe95b5c026aba3d5b91b6f81944 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f62074 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild