Fix crash on server messages
Fix crash on server messages

Commit 60cf7f8a355c8e30a0bd5a0d4fa92c3d80038cd3 introduced a
crash, if a client received a message sent by the server.

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