Predefined values with comma cannot be selected in DMN decision table

[nikku]

Describe the bug

When defining pre-defined values in a DMN decision table input, i.e. "a, b, c" then I cannot use these values in the simple mode select, as they are shown as a, b, c respectively:

Steps to reproduce

1. Open predefined-values-comma.dmn
2. Open simple mode in first input cell
3. See that "a, b, c" cannot be selected as a value

Expected behavior

• "a, b, c", i.e. the verbatim pre-defined value can be selected

Environment

• OS: Linux
• Camunda Modeler Version: v5.29.0
• Execution Platform: Camunda 8
• Installed plug-ins: none

Additional context

Related to SUPPORT-24453

[nikku]

Tagged as spring cleaning, moved to backlog.