Fix for Array move operator.

modules/juce_core/containers/juce_Array.h

@@ -143,6 +143,7 @@ public:
     Array& operator= (Array&& other) noexcept
     {
         const ScopedLockType lock (getLock());
+        deleteAllElements();
         data = static_cast<ArrayAllocationBase<ElementType, TypeOfCriticalSectionToUse>&&> (other.data);
         numUsed = other.numUsed;
         other.numUsed = 0;