Description of problem:

If you create Enumeration (via New -> Enumeration) and then author a rule (for example using Guided Decision Table), which is using operator "is contained in the", it is not possible to select and confirm the values from this Enumaration

Version-Release number of selected component (if applicable):
BRMS 6.2.0
BPM Suite 6.2.0

How reproducible:
always

Steps to Reproduce:
1. Create Data Model, Create Enumeration on one of the Model's attributes
2. Create Guided Decision Table against this attribute
3. Use "is contained in" operator on this column and try to select some values from the enum

Actual results:
It is not possible to select values using "is contained in" operator

Expected results:
It is possible to select values using "is contained in" operator

Additional info:
The workaround is to define the enumeration *inside* the Guided Decision Table - manually. But this is inconvenient, because users can't reuse the Enumeration created outside of the table amongst different business resources, and instead they are force to create the Enum manually inside the tables..

Attached is the git repository with everything needed.
Also the video demonstrating this issue.