$ git clone -n https://src.fedoraproject.org/rpms/kf6-kdoctools.git /var/lib/mock/f40-build-2387115-60496/root/chroot_tmpdir/scmroot/kf6-kdoctools
Cloning into '/var/lib/mock/f40-build-2387115-60496/root/chroot_tmpdir/scmroot/kf6-kdoctools'...
$ git fetch origin c140c43383d3faefe2c4494aaaaff9a063b6833a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kdoctools
 * [new ref]         c140c43383d3faefe2c4494aaaaff9a063b6833a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c140c43 5.249.0