[4.4] Trim email before password reset request

[Hackwar]

Pull Request for Issue #42374.

Summary of Changes

When typing in the email adress and accidentally adding a space at the front, the process fails. See the original issue linked above.

I read the original issue and I'm not sure if this is a bug or a feature or if we even want to interfer this way with this, but I decided to create a PR anyway, since it is easier to discuss with code directly instead of hypotheticals.

Testing Instructions

Type in your email adress with a space at the beginning.

Actual result BEFORE applying this Pull Request

Password reset fails.

Expected result AFTER applying this Pull Request

Password reset works.

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[joomdonation]

I remember I looked at this issue at PBF but could not replicate it for some reasons. If we want to trim space like this, I think we should add filter="TRIM" to the field, before validate="email" https://github.com/joomla/joomla-cms/blob/4.4-dev/components/com_users/forms/reset_request.xml#L10 instead

[brianteeman]

Personaly this is expected and intended behaviour and should not be accepted

[HLeithner]

would move it to 5.2, btw. if you already trim the email you could lowercase it too in php but I think it doesn't has an performance impact in sql