I can mix "description": "" and "description": null in my links

[lilyball]

When creating links with the API, omitting the description key entirely or passing { "description": null } produces a link with "description": null. However if I pass an empty string ({ "description": "" }) I get back a link with "description": "". AFAIK this doesn't affect the behavior of the link redirector, but it is annoying from an API perspective as it means I have to check if the description is empty instead of just checking if it's non-null.

Expected behavior:

Passing { "description": "" } should produce a link with { "description": null }. Any links I retrieve with GET api/links should ensure the description is either null or non-empty.