Player: Fix a deadlock triggered by previous commit 0e5e49736c

src/player.cpp

@@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "player.h"
 
 #include <fstream>
+#include "jthread/jmutexautolock.h"
 #include "util/numeric.h"
 #include "hud.h"
 #include "constants.h"
@@ -241,6 +242,7 @@ void Player::deSerialize(std::istream &is, std::string playername)
 u32 Player::addHud(HudElement *toadd)
 {
 	JMutexAutoLock lock(m_mutex);
+
 	u32 id = getFreeHudID();
 
 	if (id < hud.size())