fix sync / fulltext issue

src/entities/note.js

@@ -72,10 +72,19 @@ class Note extends Entity {
      */
 
     /** @returns {Promise<*>} */
-    async getContent() {
+    async getContent(silentNotFoundError = false) {
         if (this.content === undefined) {
             const res = await sql.getRow(`SELECT content, hash FROM note_contents WHERE noteId = ?`, [this.noteId]);
 
+            if (!res) {
+                if (silentNotFoundError) {
+                    return undefined;
+                }
+                else {
+                    throw new Error("Cannot find note content for noteId=" + this.noteId);
+                }
+            }
+
             this.content = res.content;
             this.contentHash = res.contentHash; // used only for note_fulltext consistency check