#3968 Ensemble : Not possible to plot two ensembles at the same time

Due to wrong usage of cached number of curves, curves will not be added in some cases. Multiple checking of check boxes will work as a workaround.

ApplicationCode/UserInterface/RiuSummaryCurveDefSelection.cpp

@@ -557,12 +557,16 @@ void RiuSummaryCurveDefSelection::fieldChangedByUi(const caf::PdmFieldHandle* ch
     size_t curveCount = allCurveDefinitionsFromSelection().size();
     size_t curveSetCount = allCurveSetDefinitionsFromSelections().size();
 
-    if (m_toggleChangedHandler != nullptr && (curveCount != m_prevCurveCount || curveSetCount != m_prevCurveSetCount))
+    if (m_toggleChangedHandler != nullptr)
     {
-        m_toggleChangedHandler();
+        // Do nothing if the curve count and curve set count is identical
+        if ((curveCount != m_prevCurveCount || curveSetCount != m_prevCurveSetCount))
+        {
+            m_toggleChangedHandler();
 
-        m_prevCurveCount = curveCount;
-        m_prevCurveSetCount = curveSetCount;
+            m_prevCurveCount = curveCount;
+            m_prevCurveSetCount = curveSetCount;
+        }
     }
 }
 
@@ -1204,6 +1208,9 @@ void RiuSummaryCurveDefSelection::resetAllFields()
             a->pdmField()->v().clear();
         }
     }
+
+    m_prevCurveCount = 0;
+    m_prevCurveSetCount = 0;
 }
 
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