Fix validated version of array addition

core/variant/variant_op.h

@@ -775,6 +775,7 @@ public:
 		r_valid = true;
 	}
 	static inline void validated_evaluate(const Variant *left, const Variant *right, Variant *r_ret) {
+		*r_ret = Array();
 		_add_arrays(*VariantGetInternalPtr<Array>::get_ptr(r_ret), *VariantGetInternalPtr<Array>::get_ptr(left), *VariantGetInternalPtr<Array>::get_ptr(right));
 	}
 	static void ptr_evaluate(const void *left, const void *right, void *r_ret) {