$ git clone -n https://src.fedoraproject.org/rpms/kongress.git /var/lib/mock/f40-build-2227523-53026/root/chroot_tmpdir/scmroot/kongress
Cloning into '/var/lib/mock/f40-build-2227523-53026/root/chroot_tmpdir/scmroot/kongress'...
$ git fetch origin 1189ac0d136fc6186a12cf997422df37cadbaeb7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kongress
 * [new ref]         1189ac0d136fc6186a12cf997422df37cadbaeb7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1189ac0 24.01.85