To replicate: 1. Edit a bibliographic record. 2. Click on the tag editor for a 650$a 3. Search for the authority in the modal authority search box. 4. Choose edit authority next to a search result. 5. The authority editor opens, click on replace via z39.50. 6. See the heading is auto-filled in the subject field in the z39.50 modal search box. Repeat the steps but substitute with a 651$a. See that the subject field does not auto-fill with a geographic heading.