$ git clone -n https://src.fedoraproject.org/rpms/hatch.git /var/lib/mock/f39-build-2271960-54890/root/chroot_tmpdir/scmroot/hatch
Cloning into '/var/lib/mock/f39-build-2271960-54890/root/chroot_tmpdir/scmroot/hatch'...
$ git fetch origin 6743bfc222ac6723412244f9735e42408d424f12:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hatch
 * [new ref]         6743bfc222ac6723412244f9735e42408d424f12 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6743bfc Update to 1.9.1 (close RHBZ#2255798)