2.12.3 - Fix mishandling of URL

What's Changed

Fix mishandling of URL by @gwynne in #257

We have for some time now been incorrectly encoding URLs in an incorrect format that fails to trivially round-trip back through decoding. This is now fixed. Any previously broken data stored in a database affected by this issue will now be correctly read back and will have the correct format when next written.

[!NOTE]
This is not related in any way to the recent issues with Vapor’s URI type; it is a separate concern affecting the URL type that comes from Foundation.

Also incidentally fixes #255

Reviewers

Thanks to the reviewers for their help:

• @MahdiBM

This patch was released by @gwynne

Full Changelog: 2.12.2...2.12.3