From 6b78bc926f1d85dabc6bd1c43ecd98892ec2ab56 Mon Sep 17 00:00:00 2001
From: Yves Rijckaert <hi@yvesrijckaert.com>
Date: Tue, 10 Dec 2024 14:14:13 +0100
Subject: [PATCH] fix: undefined mappings in csm

---
 packages/content-source-maps/src/richText.ts | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/packages/content-source-maps/src/richText.ts b/packages/content-source-maps/src/richText.ts
index e1885005..28a51623 100644
--- a/packages/content-source-maps/src/richText.ts
+++ b/packages/content-source-maps/src/richText.ts
@@ -15,15 +15,18 @@ export const encodeRichTextValue = ({
   hiddenStrings: SourceMapMetadata;
 }) => {
   const source = mappings[pointer];
-  // remove old pointer to rich text field as we will just be mapping the text nodes
-  delete mappings[pointer];
 
-  const textNodes = findRichTextNodes(data, pointer);
-  for (const textNode of textNodes) {
-    mappings[textNode] = source;
-    const currentTextNodeValue = get(data, textNode);
-    const encodedValue = combine(currentTextNodeValue, hiddenStrings);
-    set(data, textNode, encodedValue);
+  if (source) {
+    // remove old pointer to rich text field as we will just be mapping the text nodes
+    delete mappings[pointer];
+
+    const textNodes = findRichTextNodes(data, pointer);
+    for (const textNode of textNodes) {
+      mappings[textNode] = source;
+      const currentTextNodeValue = get(data, textNode);
+      const encodedValue = combine(currentTextNodeValue, hiddenStrings);
+      set(data, textNode, encodedValue);
+    }
   }
 };