conflict with Fastwiki plugin?

[dimonf]

I've noticed that with fastwiki plugin installed and enabled, linksuggest stops working properly:
printing [[ is not followd by popup with list of ns. The problem disappears after disabling fastwiki

[cjohnsonuk]

I'm also getting this same issue. Disabled fastwiki and it works fine again.
There doesn't appear to be any errors in the apache error log or the inspector console.