$ git clone -n https://src.fedoraproject.org/rpms/hatch.git /var/lib/mock/f40-build-2398778-60549/root/chroot_tmpdir/scmroot/hatch
Cloning into '/var/lib/mock/f40-build-2398778-60549/root/chroot_tmpdir/scmroot/hatch'...
$ git fetch origin 5dc79b1a3e0601dca30c0eacabb11dc1f06adff9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hatch
 * [new ref]         5dc79b1a3e0601dca30c0eacabb11dc1f06adff9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5dc79b1 Update to 1.9.3 (close RHBZ#2260285)