Management - Incorrect locale 'name' displaying in response error message

[exalate-issue-sync]

The ‘name’ of the locale in the error message is incorrect given a dictionary has been created and the management API endpoint is called again, but in the request, only the locale ‘name’ is changed.

Steps to reproduce 1. Call the Management API to create a locale (locale=en name=qa) 2. The locale is created 3. Now call the same endpoint but change the name only (name=qatest)

Actual result - We are showing the name inputted in the request

Expected result

• We should display in the message the name of the dictionary already created for that specific locale

For example:

"message": "An i18n dictionary already exists for en",
"http_status": 400

• The response code should be 400 Bad Request