FWIW I get the values to show as links, but only if my test user has selected more than one of the multiselect options:
When I click on them it seems to be working for me. I get /u?name=BIS%20in%20iPasS&order=likes_received as well, but it pulls up the correct users (plus my own directory result as default even though I don’t have that value in the custom field)
ETA: Mine also seem to be clickable from the profile page as well, as long as the user has multiple values:
I’m on the latest branch rather than stable, so I’m not sure if that’s the difference.