Adding customers to an organization in French language is not possible

Issue Summary

It is not possible to add a customer to an existing organization which is added to multiple projects

Steps to Reproduce

1. Add an organization to multiple projects.
2. Change your language to French. Add a customer to the organization

Expected Results

A warning "The organization is used in X other projects. Customers you add to it can view requests shared with the organization and raise their own requests in those projects". Customer is added to the organization

Actual Results

The warning is not displayed and customer is not added to the organization.

Workaround

Change your profile language to other languages such as English.