CausalityAssignmentMovementGroup: do not lose existing values on update

4 jobs for for_testrunner_3 in 0 seconds (queued for 1 second)
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-TestRunner3

01:53:27

failed ERP5.UnitTest-TestRunner3

02:51:02

passed ERP5.CodingStyleTest-TestRunner3

00:58:19

failed ERP5.UnitTest-TestRunner3

02:02:15