page tree macro fails when specifying a root page

Issue Summary

When trying to specify a Root page for a space to be displayed in the page tree macro the macro displays and error message as mentioned below:

Steps to Reproduce

1. Create a page and use a page tree macro on the page.
2. update the space key and the root page which needs to be displayed in the macro

Expected Results

The macro should result the page tree starting from the Root page specified from the space.

Actual Results

It displays an error message.

The root page KEY:Title could not be found in space [Space Name]

Workaround

As a temporary workaround, leave the root page blank and only specify the space which will fetch the page tree of that space in the macro display and the overview page of that space will be the default Root page.