fixup! fixup! TW-2145: Update condition for mapping formatted_body

Author: nqhhdev

lib/src/room.dart

@@ -673,13 +673,17 @@ class Room {
       final html = markdown(event['body'],
           getEmotePacks: () => getImagePacksFlat(ImagePackUsage.emoticon),
           getMention: getMention);
+
+      final formatText = event['body']
+          .toString()
+          .trim()
+          .replaceAll(RegExp(r'(<br />)+$'), '')
+          .convertLinebreaksToBr()
+          .replaceAll(RegExp(r'<br />\n?'), '\n');
+
       // if the decoded html is the same as the body, there is no need in sending a formatted message
       if (HtmlUnescape().convert(html.replaceAll(RegExp(r'<br />\n?'), '\n')) !=
-          event['body']
-              .toString()
-              .trim()
-              .replaceAll(RegExp(r'(<br />)+$'), '')
-              .convertLinebreaksToBr()) {
+          formatText) {
         event['format'] = 'org.matrix.custom.html';
         event['formatted_body'] = html;
       }