[Решено] Understanding how your plugin works

Background of the issue:
I am trying to update a translation URL on my site скрытая ссылка without it appending -2, -3, -4 to the URL.

Symptoms:
The URL is appending -2, -3, -4 when I try to update a translation.

Questions:
How can I update a translation URL without it appending -2, -3, -4?