login e-mail address is case sensitive

[s-light]

Expected Behavior

if i register with TestUser@example.com
i should be able to login with TestUser@example.com

Current Behavior

if i register with TestUser@example.com
i can only login with testuser@example.com
otherwise i get the error message:

No user account matches the entered credentials. Are you sure that you typed your password correctly?

Steps to Reproduce

1. register account with TestUser@example.com as email
2. logout
3. try to login with TestUser@example.com
4. see error message

Context

seems the mail is internally stored as lower-case version (makes sens as mail addresses are not case-sensitive) - but than the login-form should also convert the input to lower-case.

Your Environment

• Version used: v0.9.0-59-g7bf2550a (current master / forked)
• Environment name and version: Firefox 64.0 (64-bit)
• Operating System and version: Kubuntu 18.10 64-bit

[rixx]

Technically our behaviour is incorrect as email addresses are potentially case sensitive. We just ignore this in favour of simplifying our world. Thanks for the report, logging in is now case-insensitive, too!

[s-light]

wow this was quick!

i did not know that there is a potentially case-sensitivity for mail addresses!
just did a quick search - as one comment for this i found
https://stackoverflow.com/questions/9807909/are-email-addresses-case-sensitive#comment29820108_9808332

'In short, you are safe to treat email addresses as case-insensitive.' I'd phrase it stronger: "you're unsafe to treat email-addresses as case-sensitive manner" Especially when checking for duplicates in user-databases, etc. – Geert-Jan Nov 16 '13 at 23:00