Classical reopen issue. I build a rule using the guided elements. It's saved in DRL source and when I reopen the rule, the DRL element cannot be parsed and so it falls back to free form.

In this case the DRL element looks like:

$dayOffRequest : DayOffRequest( )
ShiftAssignment( employee == $dayOffRequest.employee , shift.timeslot.startTime.toLocalDate() == $dayOffRequest.date )

Expected result: When reopened, the element above should be presented in expression editor.