erp5_open_trade: do not expand open order which are not yet started

12 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

04:26:34

failed ERP5.UnitTest-Master

05:42:08

passed SlapOS.Eggs.UnitTest-Master.Python2

00:31:53

passed SlapOS.Eggs.UnitTest-Master.Python3

00:37:14

failed Wendelin.UnitTest-Master

01:55:38

passed ERP5.CodingStyleTest-Master

01:42:09

failed ERP5.UnitTest-Master

02:46:21

passed SlapOS.Eggs.UnitTest-Master.Python2

00:17:10

passed SlapOS.Eggs.UnitTest-Master.Python2

00:17:55

passed SlapOS.Eggs.UnitTest-Master.Python3

00:20:01

passed SlapOS.Eggs.UnitTest-Master.Python3

00:37:07

passed Wendelin.UnitTest-Master

01:21:58