$ git clone -n https://src.fedoraproject.org/rpms/qvr.git /var/lib/mock/f40-build-2389364-60518/root/chroot_tmpdir/scmroot/qvr
Cloning into '/var/lib/mock/f40-build-2389364-60518/root/chroot_tmpdir/scmroot/qvr'...
$ git fetch origin ef9668f1b44059da96bfe5581e694eb5398884a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qvr
 * [new ref]         ef9668f1b44059da96bfe5581e694eb5398884a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef9668f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild