Password Reset URL doesn't include period '.' character in username

[HaveAnEpiphany]

This one is unexpected, because I don't usually use punctuation in usernames, but I just was assigned a user account by a friend of mine on a site he controls.

When the "Your username and password info" email arrived, I clicked the link to set my password, and received the Your password reset link appears to be invalid. Please request a new link below. error.

Requesting a new password via email resulted in the password email arriving, and when I clicked the link in it, I received the same error.

On closer inspection, my username contained a . (period) character. In fact, it was the final character in the username.

When I looked at the URLs in the two emails I received, I noticed that the final character (the . or period) was stripped from the password reset link, which invalidated it.

I was able to reset my password by copying and pasting the link, then adding the . character to the end before continuing.

[swissspidy]

Which email client are you using?

I just tested this locally on a site running trunk, and the link correctly included the username with the dot at the end.

[HaveAnEpiphany]

I'm using Gmail.

Interesting. I've just tested from another site to see if I can duplicate the error. The trailing dot does appear in the text, but when I copy the URL, it is missing. This happens in the Gmail web client in both Chrome and Firefox.

[HaveAnEpiphany]

OK I've just confirmed that this problem does not occur with the Thunderbird email client. I used an address that arrives in Thunderbird but is cc:d to Gmail and the Thunderbird link works correctly, while the GMail one does not.

So... barring some other method of forming this URL in a text-only email message, this is not a WordPress issue, but perhaps a Gmail one.

Apologies.