Merge branch '3.3.5-boundaryagain' into 3.3.5-base (PR #16270)

(cherry picked from commit 1050b68899c661ea09da9e36edb82e8648393673)

src/server/game/Instances/InstanceScript.cpp

@@ -30,6 +30,12 @@
 #include "WorldSession.h"
 #include "Opcodes.h"
 
+BossBoundaryData::~BossBoundaryData()
+{
+    for (const_iterator it = begin(); it != end(); ++it)
+        delete it->boundary;
+}
+
 void InstanceScript::SaveToDB()
 {
     std::string data = GetSaveData();