Fixed a case where accessing a property could throw an exception.
Fixed a case where accessing a property could throw an exception.

The property returns -1 now instead.

By the way: 200 commits, wow.

econoraptor/demoinfo,akiver/demoinfo,suvjunmd/demoinfo,Calak/demoinfo,suvjunmd/demoinfo,Calak/demoinfo,akiver/demoinfo,EHVAG/demoinfo,EHVAG/demoinfo,econoraptor/demoinfo,suvjunmd/demoinfo,Calak/demoinfo,econoraptor/demoinfo,EHVAG/demoinfo,akiver/demoinfo