Branch name still created with the default one

Summary

When creating a branch from an issue view, changing the default suggested name have no effect, the default one will be used.

Steps to reproduce

Create an issue, or take an existing one which have not yet a branch. Open the main view of the issue, select Create branch in the drop down menu just below on the right side of the issue description, type a new name in the Branch name text field and finally, click on the Create branch button. The name of the branch you just created is the default one and not the one you typed.

Example Project

In this case make no sense, a trivial issue should be enough.

What is the current bug behavior?

Create a branch with the default suggested name.

What is the expected correct behavior?

Create a branch with the name typed in the Branch name text field.

Relevant logs and/or screenshots