Comment 1 for bug 1965317

Branch for testing: https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/dbriem/lp1965317_barcode_completion_on_tpac_staff_holds

The completed barcode loads in the barcode input if the hold group radio input exists and is unchecked. This branch changes that to: doesn't exist or is unchecked (the hold group interface isn't rendered if there are no hold groups in the system).