Fix safe_writer_lock (typo)

Utilities/mutex.cpp

@@ -300,7 +300,7 @@ safe_writer_lock::safe_writer_lock(shared_mutex& mutex)
 
 		if (m_is_owned)
 		{
-			m_mutex.lock_shared();
+			m_mutex.lock();
 			g_tls_locks.emplace_back(&m_mutex);
 			return;
 		}