Update affecting child page presents root as updated

This can be seen in the Ikea Demonstration environment: http://ikea-author.magnolia-cms-demo.com/

To reproduce:

Publish all pages of all sites to start with all green indicators.

Modify banner subtitle of /home/bathroom.
Return to browser subapp and select "Push master changes".
Select all sites and choose "Push and publish".

Indicator lights will now show modifications to /home_de/bathroom and /home_de as well as /home_ch/bathroom and /home_ch, etc.