BUG: "Find all Sony Ci files" link on Edit Asset page is including non-media files.

[afred]

Reproduce

1. Identify an Asset in AMS2 that has multiple files in Sony Ci ID that have the Asset's AAPB ID in the Sony Ci filename
   1. Note: this is an effect of a George Blood workflow that has them depositing directly into AAPB workspace with both media and non-media files having the AAPB ID in the filename.
2. Go to the Asset's Edit interface.
3. Remove all Sony Ci IDs from the Admin Data section.
4. Click the "Find all Sony Ci files... " link

Actual Behavior

Multiple Sony Ci IDs are returned, each representing a file that has the AAPB ID in the filename.

Expected Behavior

Only Sony Ci IDs representing media files should be returned.

Done when

Expected behavior is true.