Value mapper undo adaptation (single instance)

resources/la_nodes_basic.c

@@ -477,7 +477,7 @@ void IDN_MapperInit(laMapperNode* n){
 void IDN_MapperDestroy(laMapperNode* n){
     strSafeDestroy(&n->Base.Name);
     laDestroyInSocket(n->In); laDestroyOutSocket(n->Out);
-    laValueMapperDestroy(n->Mapper); n->Mapper=0;
+    laValueMapperDestroy(n->Mapper);
 }
 int IDN_MapperVisit(laMapperNode* n, laListHandle* l){
     LA_GUARD_THIS_NODE(n);
@@ -542,7 +542,7 @@ laBaseNode* la_CreateNode(laNodeRack* ir, laBaseNodeType* NodeType){
 void la_DestroyInputMapperNode(laBaseNode* bn){
     lstRemoveItem(bn->InRack, bn); bn->Type->Destroy(bn);
     laNotifyUsers("la.input_racks"); laRecordAndPush(0,"la.input_mapping","Delete node", 0);
-    memFree(bn);
+    memLeave(bn);
 }
 
 int OPINV_AddNode(laOperator* a, laEvent *e){