fix(PropertyContainer): create correctly private data

src/object/property-container.cpp

@@ -33,10 +33,16 @@ public:
 
 // -----------------------------------------------------------------------------
 
+PropertyContainer::PropertyContainer () : mPrivate(new PropertyContainerPrivate) {}
+
 // Empty copy constructor. Don't change this pattern.
 // PropertyContainer is an Entity component, not a simple structure.
 // An Entity is UNIQUE.
-PropertyContainer::PropertyContainer (const PropertyContainer &) {}
+PropertyContainer::PropertyContainer (const PropertyContainer &) : mPrivate(new PropertyContainerPrivate) {}
+
+PropertyContainer::~PropertyContainer () {
+	delete mPrivate;
+}
 
 PropertyContainer &PropertyContainer::operator= (const PropertyContainer &) {
 	return *this;

src/object/property-container.h

@@ -33,9 +33,9 @@ class PropertyContainerPrivate;
 
 class LINPHONE_PUBLIC PropertyContainer {
 public:
-	PropertyContainer () = default;
+	PropertyContainer ();
 	PropertyContainer (const PropertyContainer &src);
-	virtual ~PropertyContainer () = default;
+	virtual ~PropertyContainer ();
 
 	PropertyContainer &operator= (const PropertyContainer &src);