fix crash in case delayed loading got that much delayed. forward port of r911637 CCBUG:180854
fix crash in case delayed loading got that much delayed.
forward port of r911637
CCBUG:180854

svn path=/trunk/KDE/kdeedu/marble/; revision=911638

quannt24/marble,AndreiDuma/marble,utkuaydin/marble,tzapzoor/marble,utkuaydin/marble,AndreiDuma/marble,utkuaydin/marble,rku/marble,tucnak/marble,Earthwings/marble,tucnak/marble,quannt24/marble,utkuaydin/marble,adraghici/marble,quannt24/marble,AndreiDuma/marble,tzapzoor/marble,probonopd/marble,adraghici/marble,quannt24/marble,Earthwings/marble,tucnak/marble,tzapzoor/marble,Earthwings/marble,utkuaydin/marble,oberluz/marble,oberluz/marble,adraghici/marble,adraghici/marble,tzapzoor/marble,oberluz/marble,oberluz/marble,David-Gil/marble-dev,AndreiDuma/marble,adraghici/marble,probonopd/marble,tzapzoor/marble,David-Gil/marble-dev,rku/marble,tucnak/marble,probonopd/marble,oberluz/marble,tucnak/marble,tzapzoor/marble,David-Gil/marble-dev,quannt24/marble,utkuaydin/marble,Earthwings/marble,probonopd/marble,AndreiDuma/marble,Earthwings/marble,tzapzoor/marble,tucnak/marble,rku/marble,probonopd/marble,quannt24/marble,oberluz/marble,tucnak/marble,probonopd/marble,rku/marble,David-Gil/marble-dev,David-Gil/marble-dev,tzapzoor/marble,Earthwings/marble,AndreiDuma/marble,rku/marble,quannt24/marble,probonopd/marble,adraghici/marble,David-Gil/marble-dev,rku/marble