124877: method <SwTxtNode::RstTxtAttr(..)> - correct refactoring (made for issue…

124877: method <SwTxtNode::RstTxtAttr(..)> - correct refactoring (made for issue 123389) causing serious endless loop

sw/source/core/txtnode/txtedt.cxx

@@ -640,8 +640,9 @@ void SwTxtNode::RstTxtAttr(
                     }
                 }
             }
-            ++i;
         }
+
+        ++i;
     }
 
     TryDeleteSwpHints();