-$C \haspatch \pq$ or $\nothaspatch \pq$ is represented as the
-set $\{ \pq | C \haspatch \pq \}$. Whether $C \haspatch \pq$
+$C \haspatch \pq$ or $\nothaspatch \pq$ is represented as a
+list of $\pq$ for which it is known that $C \haspatch \pq$;
+for any $\pq$ not listed, $C \nothaspatch \pq$.
+Whether to record $C \haspatch \pq$ in a new commit