Reset password email sent in wrong language

[Chouby]

Testing the new WP 5.7 feature allowing admin to send a reset password link to users. ​https://make.wordpress.org/core/2021/02/22/send-reset-password-links-in-wordpress-5-7/ in 5.7-beta3-50398.

On a fresh WordPress site,

1. Select Spanish as website language.
2. Assign French as language for the administrator.
3. Create a subscriber and select German for his/her language.
4. As admin, click on "Send password reset" (not yet translated) for the German subscriber in the users list.

The email is sent in French (the language of the administrator).
I expect it to be sent in German.

If I assign the default site language to the German user, the email is still sent in French. I expect it to be sent in Spanish.

[johnbillion]

Moving to 5.7 to see if we can get a switch_to_locale() in there in time.

[davidbaumwald]

Quick first pass

[audrasjb]

Thanks @davidbaumwald, I tested your patch and it looks good to me.

Testing instructions I followed:

• Set up your website to English
• Changes its locale to French
• Set the website back to English
• Create a new user
• Set their locale to French
• Send a password reset link to the user: the email is in English. It should be in French (user's Locale)

• Apply the patch proposed by @davidbaumwald
• Send a password reset link to the user: the email is in French, merveilleux 🍷

[johnbillion]

Relate: #36439

[desrosj]

In 50415:

Users: Ensure reset password emails are in the receiving user’s locale.

This ensures that reset password emails initiated by an administrator are sent to the user in their preferred locale.

Follow up to [50129,50139-50141,50152].

Props chouby, davidbaumwald, audrasjb, johnbillion.
Fixes #52605. See #34281.

[Chouby]

May I suggest 52605.2.diff​ as an improvement?

The reason for my proposal to move the switch_to_locale() above the evaluation of the site name is to allow Polylang to translate the site name on the fly when retrieving the blogname option.

[peterwilsoncc]

Thanks @Chouby, this makes sense to me and I am sure will prove useful for other plugins for multilingual sites.

[peterwilsoncc]

In 50439:

Users: Use localized site title for password reset emails.

When sending password reset emails, switch to the user's locale prior to obtaining the site title to allow for plugins filtering based on locale.

Follow up to [50129,50139-50141,50152,50415].

Props chouby.
Fixes #52605. See #34281.

[peterwilsoncc]

Reopening for [50439] to be back-ported to the 5.7 branch after a second committer reviews.

[SergeyBiryukov]

[50439] looks good to backport.

[SergeyBiryukov]

In 50440:

Users: Use localized site title for password reset emails.

When sending password reset emails, switch to the user's locale prior to obtaining the site title to allow for plugins filtering based on locale.

Follow up to [50129,50139-50141,50152,50415].

Props chouby.
Merges [50439] to the 5.7 branch.
Fixes #52605. See #34281.

[apedog]

related #49971 - Admin locale setting that is independent of front/site locale and user locale.

[ocean90]

In 51077:

Users: Add user’s locale to password reset link to ensure login screen matches the language of the email.

Props walbo.
See #34281, #52605.
Fixes #53321.