Code intelligence hovers pop up on my hover link decorations, yuck

[emidoots]

My extension provides a decoration with some after: { contentText: "...", linkURL: "..." } and on GitHub.com the code intelligence hovers pop up when I move my mouse over it, which makes clicking the link really yucky:

[sqs]

I am still experiencing this (when using a dev browser extension built from master, because the fix is not yet released).

Repro:

1. Run a dev build of the browser extension (so you get this attempted fix)
2. In the browser extension options page, enable Sourcegraph extensions (feature flag)
3. Enable the https://sourcegraph.com/extensions/sourcegraph/git-extras extension
4. Go to https://github.com/sourcegraph/sourcegraph/blob/master/gulpfile.ts
5. Click the Blame button in the GitHub file toolbar (you should see a bunch of after-line blame decorations)

(I don't think that anything about the git-extras extension triggers this problem anew, but it does make it a bit easier to repro since it adds a lot of after-line decorations and on virtually any file.)

Sometimes hovering the after-line decorations shows the hover that would be correct for the last character. Sometimes it just shows a brief loading spinner in the hover then the hover goes away (it shouldn't show up at all on top of the after-line decorations, not even loading).

[sqs]

False alarm...I think something was being cached or...??? But it's working now.