When listing refs from remotes, a remote can be given by name or by URI.
This is an important distinction because dynamic remotes (USB/LAN) are
not internally mapped to a name, and thus their generated name cannot be
used for listing them. Thus, the solution is to use their URI in order
to list the refs directly from it.
Even though this feature has been around forever, the documentation
didn't really reflect it, so this patch mentions the described
alternative possibility.
Closes: #1587
Approved by: mwleeds
508ceb74e3