Masking the output of completing-read in Emacs Lisp
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I'm doing `completing-read` with a list of filesystem paths, eg. `("~/parent/child" "/parent/child")`.

I would like to mask the output of `completing-read/ido-completing-read` so that it would show only `child`, but would still return the compelete path.

Is this possible at all?

Best regards, Rat