Description of problem:
If an condition column in guided decision table is based on operation 'is contained in the (comma separated) list' then editor in cell is not shown (when I perform double click on this cell).


Version-Release number of selected component (if applicable):
6.0.1.ER2 BPMS


Steps to Reproduce:
1. Create fact: Person (name: String, age: Integer or int)
2. Create new guided decision table
3. Add condition column:
      - Pattern: Person[p]
      - Field: age
      - Operation: is contained in the (comma separated) list
      - Column header: Age (in)
4. Add row
5. edit cell in this column (by double click)

Actual results:
Nothing, no editor is shown (if I change operation, then editor is shown).


Expected results:
Show editor for this operation.

Additional info:
Based on related issue bug 979343 and bug 985368, I think that this is a regression