formatation of email addresses are broken

[schiessle]

This is the result if I copy a email address to a chat:

[mario]

Is this with master 14 or 13?

[schiessle]

testes on cloud.nextcloud.com, so 13

[nickvergessen]

Happens on master too and the API result is good, so it's a JS fuckup.

[nickvergessen]

Also happens with comments, fix is in the server repo:
nextcloud/server#10020