Merge pull request #12107 from Trisjdc/nitro_jump

Core/Spells: Nitro Boost should not fail in dungeon maps

src/server/scripts/Spells/spell_item.cpp

@@ -2231,7 +2231,8 @@ class spell_item_nitro_boots : public SpellScriptLoader
             void HandleDummy(SpellEffIndex /* effIndex */)
             {
                 Unit* caster = GetCaster();
-                caster->CastSpell(caster, roll_chance_i(95) ? SPELL_NITRO_BOOTS_SUCCESS : SPELL_NITRO_BOOTS_BACKFIRE, true, GetCastItem());
+                bool success = caster->GetMap()->IsDungeon() || roll_chance_i(95);
+                caster->CastSpell(caster, success ? SPELL_NITRO_BOOTS_SUCCESS : SPELL_NITRO_BOOTS_BACKFIRE, true, GetCastItem());
             }
 
             void Register() override