Fixed editor log collapsing of duplcate messages not working

editor/editor_log.cpp

@@ -234,7 +234,9 @@ void EditorLog::_add_log_line(LogMessage &p_message, bool p_replace_previous) {
 
 	if (p_replace_previous) {
 		// Remove last line if replacing, as it will be replace by the next added line.
-		log->remove_line(log->get_line_count() - 1);
+		// Why - 2? RichTextLabel is weird. When you add a line, it also adds a NEW line, which is null,
+		// but it still counts as a line. So if you remove the last line (count - 1) you are actually removing nothing...
+		log->remove_line(log->get_line_count() - 2);
 		log->increment_line_count();
 	}