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

yypsybs

2023-09-20 30010fad767e42c851d8961cdea97a4444a756ae

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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 );
  *]
}