$ git clone -n https://src.fedoraproject.org/rpms/qt6-qttools.git /var/lib/mock/f40-build-786594-134465/root/chroot_tmpdir/scmroot/qt6-qttools
Cloning into '/var/lib/mock/f40-build-786594-134465/root/chroot_tmpdir/scmroot/qt6-qttools'...
$ git fetch origin 73b3ad8b6ab4411b13f0fa20a700e1abaa0f2cba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qttools
 * [new ref]         73b3ad8b6ab4411b13f0fa20a700e1abaa0f2cba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73b3ad8 6.6.2