Core/Spells: Fixed spells using MovePositionToFirstCollision for selecting target position getting Z coord offset by caster or target collision height (depending on spell target type) (ported commit: d63d15c505708d175c52d87afc76cbe4ac59497b)

src/server/game/Entities/Object/Object.cpp

@@ -2544,6 +2544,8 @@ void WorldObject::MovePositionToFirstCollision(Position &pos, float dist, float
         destx, desty, destz + halfHeight,
         destx, desty, destz, -0.5f);
 
+    destz -= halfHeight;
+
     // collision occured
     if (col)
     {
@@ -2559,6 +2561,8 @@ void WorldObject::MovePositionToFirstCollision(Position &pos, float dist, float
         destx, desty, destz + halfHeight,
         destx, desty, destz, -0.5f);
 
+    destz -= halfHeight;
+
     // Collided with a gameobject
     if (col)
     {