Archaedas should properly start now when clicking on the altar. (#21401)

src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp

@@ -257,6 +257,8 @@ class instance_uldaman : public InstanceMapScript
                 {
                     archaedas->RemoveAura(SPELL_FREEZE_ANIM);
                     archaedas->CastSpell(archaedas, SPELL_ARCHAEDAS_AWAKEN, false);
+                    archaedas->SetFaction(FACTION_TITAN);
+                    archaedas->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                     whoWokeuiArchaedasGUID = target;
                 }
             }