Fixed CheshireCat::operator=()

include/rtc/utils.hpp

@@ -117,7 +117,10 @@ public:
 
 	virtual ~CheshireCat() = default;
 
-	CheshireCat &operator=(CheshireCat<T> &&cc) { mImpl = std::move(cc->mImpl); };
+	CheshireCat &operator=(CheshireCat<T> &&cc) {
+		mImpl = std::move(cc.mImpl);
+		return *this;
+	};
 	CheshireCat &operator=(const CheshireCat<T> &) = delete;
 
 protected: