hydrate: build fallback authors during gatherAuthors step

src/storages/hydrate.ts

@@ -99,8 +99,7 @@ export function assembleEvents(
   }));
 
   for (const event of a) {
-    event.author = b.find((e) => matchFilter({ kinds: [0], authors: [event.pubkey] }, e)) ??
-      fallbackAuthor(event.pubkey);
+    event.author = b.find((e) => matchFilter({ kinds: [0], authors: [event.pubkey] }, e));
     event.user = b.find((e) => matchFilter({ kinds: [30382], authors: [admin], '#d': [event.pubkey] }, e));
     event.info = b.find((e) => matchFilter({ kinds: [30383], authors: [admin], '#d': [event.id] }, e));
 
@@ -231,19 +230,29 @@ function gatherQuotes({ events, store, signal }: HydrateOpts): Promise<DittoEven
 }
 
 /** Collect authors from the events. */
-function gatherAuthors({ events, store, signal }: HydrateOpts): Promise<DittoEvent[]> {
+async function gatherAuthors({ events, store, signal }: HydrateOpts): Promise<DittoEvent[]> {
   const pubkeys = new Set(events.map((event) => {
-    if (event.kind === 9735) {
+    if (event.kind === 9735) { // FIXME: This code doesn't belong in this function.
       const pubkey = event.tags.find(([name]) => name === 'p')?.[1];
       if (pubkey) return pubkey;
     }
     return event.pubkey;
   }));
 
-  return store.query(
+  const authors = await store.query(
     [{ kinds: [0], authors: [...pubkeys], limit: pubkeys.size }],
     { signal },
   );
+
+  for (const pubkey of pubkeys) {
+    const author = authors.find((e) => matchFilter({ kinds: [0], authors: [pubkey] }, e));
+    if (author) {
+      const fallback = fallbackAuthor(pubkey);
+      authors.push(fallback);
+    }
+  }
+
+  return authors;
 }
 
 /** Collect users from the events. */