sapper-noscroll attribute is ignored

[felideon]

Describe the bug
Sapper scrolls to the top even when adding the sapper-noscroll attribute.

To Reproduce
Add a link from one route to another using the sapper-noscroll attribute.

Expected behavior
Adding the sapper-noscroll attribute to an <a> element should prevent the page from being scrolled to the top, as per #376. It should be reproducible from a vanilla copy of sapper-template, except the pages aren't very long and scroll position might not be obvious.

Information about your Sapper Installation:

• Browser: Chrome 78.0.3904.70, Safari 13.0.3

• OS: macOS Mojave 10.14.6

• Environment: local

• Sapper version: 0.27.9

• Svelte version: 3.12.1

• If it is an exported (npm run export) or dynamic application: both

• Whether your application uses Webpack or Rollup: Rollup

Severity
Somewhat annoying, specially since this is a nice feature to have! Also it is preventing me from doing my own Element.scrollIntoView() as Sapper's scroll to top seems to win.

[felideon]

Hmm, no longer reproducible with Svelte 3.16.3.