v0.2.55..v0.2.56 changeset CopyMapSubsetOp.cpp

diff --git a/hoot-core/src/main/cpp/hoot/core/ops/CopyMapSubsetOp.cpp b/hoot-core/src/main/cpp/hoot/core/ops/CopyMapSubsetOp.cpp
index a66c2a6..39850af 100644
--- a/hoot-core/src/main/cpp/hoot/core/ops/CopyMapSubsetOp.cpp
+++ b/hoot-core/src/main/cpp/hoot/core/ops/CopyMapSubsetOp.cpp
@@ -46,6 +46,7 @@ public:
     _exempt(exempt)
   {
   }
+  virtual ~AddAllVisitor() = default;
 
   virtual void visit(const ConstElementPtr& e)
   {
@@ -127,7 +128,7 @@ _from(from),
 _crit(crit)
 {
   std::shared_ptr<UniqueElementIdVisitor> getIdVis(new UniqueElementIdVisitor());
-  FilteredVisitor idVis(crit, getIdVis);
+  FilteredVisitor idVis(_crit, getIdVis);
   _from->visitRo(idVis);
   _eids = getIdVis->getElementSet();
   LOG_VARD(_eids.size());