Reference variables autocomplete attributes defined on variable attributes are not honored in catalog reference variables.
Steps to Reproduce
Navigate to Service Catalog > Catalogs.
Click Service Catalog, then select Services > Consulting Request.
Right-click the variable What cost center will be billed? and choose Configure Variable.
To set the name and description as auto complete columns for this field, select the Default Value tab and paste the following value in the Variable Attributes field (all on one line), then click Update.
On the Consulting Request page, in the field What cost center will be billed?, start typing "Software Research and Development" which is the description for the department with name development.
Note that auto complete is not honoring the auto complete columns set up in the variable attributes.
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Related Problem: PRB1093349