bug: Tag Search doesn't respect custom File Search prefix

The see file usage function of the tag search (pressing Enter on a Tag search result) doesn't respect custom File Search prefixes

Steps to reproduce

Change File Search prefix (I tried with ` and$- I want ` like Alfred)
Open BCP and search for a tag (#myTag)
Press Enter to see the files the tag is in
BCP populates the search with the default search prefix: /@#myTag instead of @#myTag, or $@#myTag
- Therefore, BCP is not in file search mode, and returns No matching commands