Does sorting work at all with this plugin?

[tylermanning]

I have implemented this plugin for my site but it looks like the paginator shuffled all my posts in some way. After digging around it seems like it's impossible to do something like,
{% assign sortedPosts = paginator.posts | sort: 'post-priority' %}
with this plugin. Is this true?

(in this case post-priority is just a numerical variable in the front matter of each markdown post.)