Fixed IDN for emails is not handled consistently

[Kirby]

Affected version

2.2.10 PL 1

Steps to Reproduce

1. Attempt tp create a new user with email address someone@♥local.host using Chrome
2. Attempt to create a new user with email address someone@xn--local-bs1c.host using Chrome
3. Delete users created in step 1) and 2)
4. Attempt to create a new user with email address someone@♥local.host using Firefox
5. Attempt to create a new user with email address someone@xn--local-bs1c.host using Firefox

Expected Result
Attempts 1) and 4) pass, attempts 2) and 5) fail as this is the IDN equivalent of the email address used in steps 1) and 4) (Preferred)
OR
All attempts are successful

Actual Result
Attemps 1), 4) and 5) are successful - attempt 2) fails

 

[Chris D]

Along with better handling for URL IDNs this has been implemented for the next release. Cheers.