Markdown preview urlencode link get arguments then broken links when pasting in a rich text document.

• VSCode Version: Version 1.28.0 431ef9d 2018-10-04T16:33:34.831Z
• OS Version: macOS Mojave 10.14 (18A391)

Steps to Reproduce:

1. Create a Markdown document with a link with parameters, i.e.:

[Test](https://foo.com/bar?foo=1&bar=2)

2. Copy the preview link
3. Paste in a rich text document (in example mac Notes)
4. Follow the link, is broken.

If you follow the link from the preview, it works, but if you follow the link from the rich text you get

https://foo.com/bar?foo%3D1%26bar%3D2

Does this issue occur when all extensions are disabled?: Yes