Using morex on wand graphics crashes sphere

[mtwango]

When using an item with morex, even nonmagical type like bellow, it crashes the sphere, because it wants to cast a spell (from morex) without setting the caster.

Following item:

[ITEMDEF i_wand_of_jail]
id=0df2
name=GM's Wand of Jail
type=t_weapon_mace_sharp

on=@create
  attr=attr_newbie
  hitpoints=100

on=@dclick
  morex=<src.account.plevel>
  serv.log plevel: <morex>
  if (<morex> < 2)
    src.sysmessage You Wouldn't Steal a Wand 
    src.hits=0
    remove
    return 1
  endif
  src.message Select a player...
  return 0

used with plevel 7 crashes the sphere here:

Source-X/src/game/chars/CCharSpell.cpp

Line 1411 in 5d62a1e

pSpell->m_itSpell.m_PolyStr = (int16)pSpellDef->m_vcEffect.GetLinear(pCaster->Skill_GetBase((SKILL_TYPE)iSkill)) / 10; // % of damage reflected.

because pCaster is null (defined here):

Source-X/src/game/chars/CCharSpell.cpp

Line 979 in 5d62a1e

CChar *pCaster = pSpell->m_uidLink.CharFind();

But as it is neither magical, neither wand (by type, not by graphics), it should event try to cast the spell.

[GladieUO]

If I change type to t_wand, it works as wand. Only with weapon type it crashes - and only if you are dclicking it from backpack.
If I have it equipped already, it doesnt crash and works even with weapon type.

[mtwango]

Same if you dclick from ground or use useitem via scripts (ground tested).