Steps to reproduce the issue

Have a category tree with equal aliasses in differnet categories. (John - books and Rachel - books
Perform batch action move as in the following screen. Move books from Rachel to John

This results in duplicate title and aliases for two different categories

Expected result

A check for duplicate alias is performed and a warning is displayed and/or the moved alias gets a number.

Actual result

Duplicate title and alias for moved categories

System information (as much as possible)

Additional comments