tab completion in minibuffer after a hyphen?

I'm using emacs + evil. With helm-mode. In the minibuffer / ex mode, if I type lsp then hit tab I see a list of completions as expected. If I type lsp- then tab the nothing happens. No completion list is shown. Nothing happens at all.

Strangely I thought this use to work but updating my packages one day broke this behavior.

Any ideas?

Emacs configs: https://github.com/coreyoconnor/RCs/tree/master/emacs.d/local