Setting suggestion strategy to completion or (completion) doesn't show tab completions as suggestions.
Steps to reproduce the behavior:

Auto-suggestion is shown with data coming from tab-completion.
Didn't use (completion) previously, just the default (history), and history works perfectly fine.
As of right now, you need to run compinit for the completion suggestions to work:
autoload compinit && compinit
I'll look into making the strategy work without it- I think it should be possible.
Worked flawlessly. Thanks a lot for the hint!
Do you want me to send a pull request to explicitly mention this gotcha in the documentation?
Most helpful comment
As of right now, you need to run
compinitfor the completion suggestions to work:I'll look into making the strategy work without it- I think it should be possible.