Sorting by name in the cleanup policy preview not working correctly

Sorting on the Name column in the Cleanup Policy preview window does not appear to work correctly when artifact names are hyphenated. 

To reproduce:

1. For a given repo e.g. Maven, upload a mix of artifacts where some have a hyphen in their name and some do not e.g. my-app, foo, bar.
2. Create a cleanup policy that will match the above artifacts in preview.
3. Preview the results against the given repo and then attempt to sort the results by name.

Expected:
All shown results will be sorted  by name (Asc or Desc).

Actual:

Only the non-hyphenated artifacts are sorted by Name. See attached video 'preview_sort.mov' for demo (notice only artifacts named "foo" and "bar" are sorted but "my-app" are not).