Merge remote-tracking branch 'origin/dev' into dev

yypsybs

2023-10-17 f0d52e21acb1170e7eefe8f3c7a651131f153fae

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Quintiq file version 2.0
#parent: #root
Function CalcDuration
{
  TextBody:
  [*
    // soh yee Feb-13-2014 (created)
    value := guard( this.End() - this.Start(), Duration::Zero() );
    
    this.Duration( value );
  *]
}