48f3b495b77df61588fe81aa7b98fd9c3e1263d4,source/com/intellij/openapi/vcs/ex/LineStatusTracker.java,LineStatusTracker,release,#,239

Before Change


      LOG.assertTrue(!myIsReleased);

      removeHighlighters(new ArrayList<Range>());
      myDocument.removeDocumentListener(myDocumentListener);
    }
    finally {
      myIsReleased = true;

After Change


      LOG.assertTrue(!myIsReleased);

      removeHighlighters(new ArrayList<Range>());
      if (myDocumentListener != null) {
        myDocument.removeDocumentListener(myDocumentListener);
        myDocumentListener = null;
      }
    }