$ git clone -n https://src.fedoraproject.org/rpms/gtkpod.git /var/lib/mock/f40-build-797643-141421/root/chroot_tmpdir/scmroot/gtkpod
Cloning into '/var/lib/mock/f40-build-797643-141421/root/chroot_tmpdir/scmroot/gtkpod'...
$ git fetch origin a3e1c785b5a43603ad46ef913b0644babbfc6a73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtkpod
 * [new ref]         a3e1c785b5a43603ad46ef913b0644babbfc6a73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3e1c78 Patch for FTBFS