fisher: Duplicate entries in fishfile

I use my own set of fish scripts as a plugin, so I have this in my fishfile:

mrak/mrak.fish

For convenience, I have set the origin push url to be git@github.com:mrak/mrak.fish so that I can my local edits and push them. I have also tried, instead of modifying the origin push url, adding a new remote as upstream

When I run fisher up, it adds the following to my fishfile:

mrak/mrak.fish
mrak/mrak.fish
git@github.com:mrak/mrak.fish

$ git -C ~/.config/fisherman/mrak.fish remote -v
origin	https://github.com/mrak/mrak.fish (fetch)
origin	https://github.com/mrak/mrak.fish (push)
upstream	git@github.com:mrak/mrak.fish.git (fetch)
upstream	git@github.com:mrak/mrak.fish.git (push)

It would be nice if the first url entry from .git/config is used instead of all of them 😃