Setting g:wintabs_display = 'none' followed by :WintabsRefresh does nothing

[tmandry]

In this context I'm trying to disable wintabs in goyo. I would expect the steps in the title would cause the wintabs to disappear, but they remain.

This is minor because I found a workaround (enabling Goyo after doing all of this works), but I have to manually keep track of state and it's a little surprising.

[tmandry]

Actually, I thought I had a workaround, but it seems like toggling g:wintabs_display back and forth between none and statusline can get into a weird state where the vim tabline doesn't update anymore (or it does, but only after a delay). This seems to happen or not WintabsRefresh is run.

EDIT: This appears to be an interaction with Goyo specifically; I can't reproduce it without. I think I'll leave the overall issue open since that behavior is still unexpected, but you can ignore what's in this comment.

[zefei]

Can you give me a minimal repro vimrc? I'd like to support interaction with other plugins when possible.