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path: root/src/client/views/nodes/FormattedTextBox.tsx
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-rw-r--r--src/client/views/nodes/FormattedTextBox.tsx2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/client/views/nodes/FormattedTextBox.tsx b/src/client/views/nodes/FormattedTextBox.tsx
index b12ca60c9..995fcee17 100644
--- a/src/client/views/nodes/FormattedTextBox.tsx
+++ b/src/client/views/nodes/FormattedTextBox.tsx
@@ -518,7 +518,7 @@ export class FormattedTextBox extends DocComponent<(FieldViewProps & FormattedTe
this._textReactionDisposer = reaction(
() => this.extensionDoc,
() => {
- if (this.dataDoc.text || this.dataDoc.lastModified) {
+ if (this.extensionDoc && (this.dataDoc.text || this.dataDoc.lastModified)) {
this.extensionDoc.text = this.dataDoc.text;
this.extensionDoc.lastModified = DateCast(this.dataDoc.lastModified)[Copy]();
this.dataDoc.text = undefined;