1513940 - Track Changes - Clear changes made within iframe when it reloads

Status: NEW

(DevTools :: Inspector: Changes, defect, P3)

Description

[Razvan Caliman [:rcaliman]]

Steps:
- Run this in a new tab:
data:text/html,<style>h1 {color: red }</style><h1>TEST</h1><iframe src="https%3A%2F%2Fwww.example.com%2F" />

- Open the DevTools Inspector
- Select the h1 in the host document
- Switch to the the Rules view and make any change
- Select the h1 in the iframe,
- Switch to the the Rules view and make any change
- Right click on the iframe on the page
- Pick This Frame > Reload Frame from the context menu
- Switch to the Changes panel

Expected
- The changes from the iframe should be cleared, but not the ones from the parent document.

Actual
- The changes from the iframe are not cleared. Depends on Bug 1512665, else all changes are wrongly cleared.