Improve "adding remotes" wizard/UX #1986
Description
Ideally, we had an UI where we could select which refs we're interested in. E.g. a preview of what the remote provides -- esp. highlighting the stuff we don't have already. Also very likely we don't need the tags, as tags tend to be shared ("centralized") even in a distributed git system.
Originally posted by @kaste in #1985 (comment)