#399

frontend/src/pages/posts/PostImportSourcePage.tsx

@@ -56,9 +56,9 @@ const PostImportSourcePage: FC<Props> = ({ user }) => {
     const editedRef = useRef (false)
 
     const lineCount = countImportSourceLines (source)
-    const messages = sourceError ? [sourceError] : []
+    const messages = sourceError != null ? [sourceError] : []
     const sourceDescribedBy = [
-	sourceError ? SOURCE_ERROR_ID : null,
+	sourceError != null ? SOURCE_ERROR_ID : null,
 	sourceIssues.length > 0 ? SOURCE_ISSUES_ID : null]
 	.filter (_1 => _1 != null)
 	.join (' ')