$ git clone -n https://src.fedoraproject.org/rpms/chatty.git /var/lib/mock/f40-build-2708459-71497/root/chroot_tmpdir/scmroot/chatty
Cloning into '/var/lib/mock/f40-build-2708459-71497/root/chroot_tmpdir/scmroot/chatty'...
$ git fetch origin d38b6496f6cb01c23ca6fe257cfa068478d3ab89:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chatty
 * [new ref]         d38b6496f6cb01c23ca6fe257cfa068478d3ab89 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d38b649 Remove openssl1.1-devel dependency (fedora#2271571)