Autojump path repeats in PATH in Fish

Problem

Autojump can be installed and used with Fish shell as described here. However, if you source your Fish config file repeatedly, then the autojump path appears repeated in your PATH environment variable:

$ echo $PATH
/home/joe/.autojump/bin /home/joe/bin /usr/local/sbin /usr/local/bin /usr/sbin /usr/bin /sbin /bin
$ source ~/.config/fish/config.fish
$ echo $PATH
/home/joe/.autojump/bin /home/joe/.autojump/bin /home/joe/bin /usr/local/sbin /usr/local/bin /usr/sbin /usr/bin /sbin /bin

Solution

I have a commit here that fixes this behavior. This pull request hopefully be merged into Autojump and if you get the latest version of Autojump you should no longer face this problem.

Tried with: Autojump 22.2.4, Fish 2.2 and Ubuntu 14.04