'Hello World' duplicate output in Guru

[Salil V Gangal <salil_gangal@xxxx>]

EnableTextOutput( 1 ) ;
stringAFL = "Hello World in Variable";
WriteIf(1>0,stringAFL,stringAFL);
WriteIf(1>0
        ,"Hello World HardCoded"
        ,"Hello World HardCoded"
);
Any input about why ? And how to stop this sort of duplicate output ?
Regards,
- Salil V Gangal
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