$ git clone -n https://src.fedoraproject.org/rpms/golang-github-gdamore-tcell-2.git /var/lib/mock/f40-build-1151366-21269/root/chroot_tmpdir/scmroot/golang-github-gdamore-tcell-2
Cloning into '/var/lib/mock/f40-build-1151366-21269/root/chroot_tmpdir/scmroot/golang-github-gdamore-tcell-2'...
$ git fetch origin 89c34aa53147579530d0af124367b67eebc7cbad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-gdamore-tcell-2
 * [new ref]         89c34aa53147579530d0af124367b67eebc7cbad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89c34aa Update to latest version (#2267541)