Fix primal tenacity reduce damage while stunned only on cat form, by laise

Closes issue #1143

--HG--
branch : trunk

src/server/game/Entities/Unit/Unit.cpp

@@ -1791,7 +1791,7 @@ void Unit::CalcAbsorbResist(Unit *pVictim, SpellSchoolMask schoolMask, DamageEff
                 if (spellProto->SpellIconID == 2253)
                 {
                     //reduces all damage taken while Stunned
-                    if (unitflag & UNIT_FLAG_STUNNED)
+                    if (pVictim->m_form == FORM_CAT && (unitflag & UNIT_FLAG_STUNNED))
                         RemainingDamage -= RemainingDamage * currentAbsorb / 100;
                     continue;
                 }