js validation messages translation not working in customer account

[bjoern-quast]

Preconditions

1. Magento CE 2.1.0 without sample data is installed.
2. Splendit Internet's mage2-locale-de-de is installed
3. A custom language pack is installed for de_DE

Steps to reproduce

1. Add translation to custom language pack:

Minimum length of this field must be equal or greater than %1 symbols. Leading and trailing spaces will be ignored.,Mindestlänge dieses Feldes muss größer oder gleich %1 Zeichen sein. Führende oder nachfolgende Leerzeichen werden ignoriert.

1. Log in as customer in the German store
2. Under "change password", enter fewer than the required symbols

Expected result

1. Message that appears:

Mindestlänge dieses Feldes muss größer oder gleich 8 Zeichen sein. Führende oder nachfolgende Leerzeichen werden ignoriert.

Actual result

1. Message that appears:

Minimum length of this field must be equal or greater than 8 symbols. Leading and trailing spaces will be ignored.

Also true for many other validation messages in the customer account, as well as the register new customer page.

[jernejh]

Having the same problem in 2.1.1.

[mv-developer]

Having the same problem in 2.1.1.

[cuiyang000]

Having the same problem in 2.1.1.
It's also in registration page.

[gabs77]

Having the same problem in 2.1.2.

[OktarinTentakel]

Also see #7363

Seems to be a timing problem with the init code in translation.phtml.

[tlygnersjo]

I'm having the same problem on 2.1.2

[ulftietze]

Issue still persist.

[davidverholen]

The problem seems to be that the original string in lib/web/mage/validation.js and vendor/magento/module-ui/view/base/web/js/lib/validation/rules.js is divided into two parts.

https://github.com/magento/magento2/blob/2.1/lib/web/mage/validation.js#L549

This way, the translation cannot be found during the static content deploy and the translation is not added to the js-translation.json file

The Problem is already solved in the develop branch: https://github.com/magento/magento2/blob/develop/lib/web/mage/validation.js#L549

[tsauerwein]

See #5509

Fix will be delivered in 2.1.7, 2.0.15 and 2.2.0

#5509 (comment)

[marcosdsdba]

I have this problem in Magento 2.1.5. Problem persists !!!!