Query builder mutates the Entities list

[pmoleri]

Description

The Entities list assigned as an @Input gets mutated attaching a lot of information to it.

• igniteui-angular version: 19.1.0
• browser: any

Steps to reproduce

1. Instantiate Query Builder with an Entities list
2. Print the Entities list after the Query builder has rendered

Result

The Entities list which was a few lines long now it's huge, each fields has a lot of metadata appended to it.

Expected result

@Inputs should be treated as readonly

Attachments

Stackblitz example