$ git clone -n https://src.fedoraproject.org/rpms/pitivi.git /var/lib/mock/f40-build-734583-105972/root/chroot_tmpdir/scmroot/pitivi
Cloning into '/var/lib/mock/f40-build-734583-105972/root/chroot_tmpdir/scmroot/pitivi'...
$ git fetch origin d484c4d4bfa2567edf9504cfc97bf9e87a0fc598:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pitivi
 * [new ref]         d484c4d4bfa2567edf9504cfc97bf9e87a0fc598 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d484c4d Require libpeas1 compat package rather than libpeas in F39+