Core/Misc: Fix static analysis issues

(cherry picked from commit 832a114196c7e9405d0569eac1d44de6c7dd83dc)

src/server/game/Entities/Player/Player.cpp

@@ -149,6 +149,7 @@ Player::Player(WorldSession* session) : Unit(true), m_sceneMgr(this)
     m_session = session;
 
     m_ingametime = 0;
+    m_sharedQuestId = 0;
 
     m_ExtraFlags = 0;