$ git clone -n https://src.fedoraproject.org/rpms/gqrx.git /var/lib/mock/f40-build-2273882-54997/root/chroot_tmpdir/scmroot/gqrx
Cloning into '/var/lib/mock/f40-build-2273882-54997/root/chroot_tmpdir/scmroot/gqrx'...
$ git fetch origin 6e3627f840cdcc6dfe07190f8b8d554f446fd3e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gqrx
 * [new ref]         6e3627f840cdcc6dfe07190f8b8d554f446fd3e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e3627f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild