Steps to replicate the issue (include links if applicable):

• Add an archived url to the appropiate field
• Now add an archived date and click update so the reference is updated and the new changes are reflected

What happens?:
The archived date doesn't appear at all, only the archived url.
I've noticed this happening in both eswiki and ptwiki, but I assume the problem is happening in more wikis

What should have happened instead?:

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):