From decac58a18fbe3d2f841bed24dc643a09511925a Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Mon, 20 Feb 2023 10:29:33 +0000
Subject: [PATCH] Better type guard parseTopicContent (#3165)

---
 src/content-helpers.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/content-helpers.ts b/src/content-helpers.ts
index 88bcd90ef..6790886f2 100644
--- a/src/content-helpers.ts
+++ b/src/content-helpers.ts
@@ -202,6 +202,9 @@ export type TopicState = {
 
 export const parseTopicContent = (content: MRoomTopicEventContent): TopicState => {
     const mtopic = M_TOPIC.findIn<MTopicContent>(content);
+    if (!Array.isArray(mtopic)) {
+        return { text: content.topic };
+    }
     const text = mtopic?.find((r) => !isProvided(r.mimetype) || r.mimetype === "text/plain")?.body ?? content.topic;
     const html = mtopic?.find((r) => r.mimetype === "text/html")?.body;
     return { text, html };