Merge branch 'dev_yy' into dev

yanyuan

2023-09-06 efb7b5c7ee8424268f48a168e7f5b869030d3a9b

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Quintiq file version 2.0
#parent: #root
Attribute End
{
  #keys: '3[112884.1.822102880][112884.1.822102877][112884.1.822102881]'
  Description: 'The latest end among periods'
  ValueType: DateTime
}