clickSaveChart() to account for a rename when finding previous chart to wait for staleness

Author: cnathe

src/org/labkey/test/components/react/QueryChartDialog.java

@@ -441,9 +441,13 @@ public QueryChartPanel clickCreateChart()
         appears when dialog is in 'edit' mode
      */
     public QueryChartPanel clickSaveChart()
+    {
+        return clickSaveChart(getName());
+    }
+    public QueryChartPanel clickSaveChart(String previousChartName)
     {
         String name = getName();
-        WebElement prevChart = _queryGrid.getChartPanel(name).getSvgChart();
+        WebElement prevChart = _queryGrid.getChartPanel(previousChartName).getSvgChart();
         WebDriverWrapper.waitFor(this::isSaveChartButtonEnabled,
                 "the Save chart button did not become enabled", 2000);
         dismiss("Save Chart");