adding a flag to indicate whether group controls applied

for WellCollection.

opm/core/wells/WellCollection.cpp

@@ -194,6 +194,8 @@ namespace Opm
             roots_[i]->applyProdGroupControls();
             roots_[i]->applyInjGroupControls();
         }
+
+        group_control_applied_ = true;
     }
 
     /// Applies explicit reinjection controls. This must be called at each timestep to be correct.
@@ -324,6 +326,13 @@ namespace Opm
     }
 
 
+
+    bool WellCollection::groupControlApplied() const
+    {
+        return group_control_applied_;
+    }
+
+
     bool WellCollection::groupTargetConverged(const std::vector<double>& well_rates) const
     {
         // TODO: eventually, there should be only one root node

opm/core/wells/WellCollection.hpp

@@ -139,6 +139,9 @@ namespace Opm
         /// Whether we have active group control
         bool groupControlActive() const;
 
+        /// Whether we have applied the group control
+        bool groupControlApplied() const;
+
         /// Whether the group target is converged
         // It is considered converged if eitehr the group targets are matched or the group targets are not matched while the wells are
         // running under their own limits so that they can not produce more
@@ -163,7 +166,8 @@ namespace Opm
 
         bool group_control_active_ = false;
 
-
+        // This is used to mark whether apply or update the group control
+        bool group_control_applied_ = false;
     };
 
 } // namespace Opm