Don't crash if someone tries to add an ACE for an unknown user id
Don't crash if someone tries to add an ACE for an unknown user id

Githlar/mumble,Natenom/mumble,austinliou/mumble,SuperNascher/mumble,Natenom/mumble,mkrautz/mumble-sbcelt,Keridos/mumble,Zopieux/mumble,unascribed/mumble,ccpgames/mumble,unascribed/mumble,niko20010/mumble,Lartza/mumble,SuperNascher/mumble,richard227/mumble,bheart/mumble,mbax/mumble,chiefdome/mumble-code,Natenom/mumble,LuAPi/mumble,chancegarcia/mumble,LuAPi/mumble,ccpgames/mumble,feld/mumble,mbax/mumble,Lartza/mumble,Zopieux/mumble,mbax/mumble,bheart/mumble,richard227/mumble,mkrautz/mumble-sbcelt,mkrautz/mumble-sbcelt,SuperNascher/mumble,austinliou/mumble,niko20010/mumble,Lartza/mumble,chancegarcia/mumble,Natenom/mumble,niko20010/mumble,Natenom/mumble,panaschieren/mumble-test,Keridos/mumble,bheart/mumble,bheart/mumble,chancegarcia/mumble,richard227/mumble,chiefdome/mumble-code,SuperNascher/mumble,mkrautz/mumble-sbcelt,Keridos/mumble,mbax/mumble,mbax/mumble,chiefdome/mumble-code,chancegarcia/mumble,Zopieux/mumble,austinliou/mumble,chancegarcia/mumble,ccpgames/mumble,richard227/mumble,SuperNascher/mumble,austinliou/mumble,niko20010/mumble,ccpgames/mumble,ccpgames/mumble,chiefdome/mumble-code,mbax/mumble,chiefdome/mumble-code,bheart/mumble,panaschieren/mumble-test,chiefdome/mumble-code,austinliou/mumble,feld/mumble,feld/mumble,chancegarcia/mumble,panaschieren/mumble-test,ccpgames/mumble,feld/mumble,unascribed/mumble,LuAPi/mumble,LuAPi/mumble,Githlar/mumble,niko20010/mumble,Lartza/mumble,ccpgames/mumble,Githlar/mumble,Natenom/mumble,niko20010/mumble,unascribed/mumble,niko20010/mumble,Githlar/mumble,Githlar/mumble,Zopieux/mumble,ccpgames/mumble,LuAPi/mumble,Natenom/mumble,Lartza/mumble,Natenom/mumble,Lartza/mumble,Githlar/mumble,mkrautz/mumble-sbcelt,Githlar/mumble,mkrautz/mumble-sbcelt,panaschieren/mumble-test,richard227/mumble,SuperNascher/mumble,Zopieux/mumble,Keridos/mumble,panaschieren/mumble-test,Zopieux/mumble,Zopieux/mumble,austinliou/mumble,unascribed/mumble,Keridos/mumble,panaschieren/mumble-test,mkrautz/mumble-sbcelt,SuperNascher/mumble,chancegarcia/mumble,unascribed/mumble,niko20010/mumble,austinliou/mumble,bheart/mumble,Keridos/mumble,feld/mumble,bheart/mumble,chiefdome/mumble-code,unascribed/mumble,richard227/mumble,SuperNascher/mumble,LuAPi/mumble,feld/mumble,unascribed/mumble,panaschieren/mumble-test,feld/mumble,bheart/mumble,feld/mumble,Lartza/mumble,panaschieren/mumble-test,Githlar/mumble,Keridos/mumble,mbax/mumble,LuAPi/mumble,chancegarcia/mumble,mbax/mumble,mkrautz/mumble-sbcelt,Lartza/mumble,richard227/mumble,LuAPi/mumble,SuperNascher/mumble,Keridos/mumble,Zopieux/mumble,chancegarcia/mumble,chiefdome/mumble-code,austinliou/mumble,richard227/mumble,LuAPi/mumble