Pagetree macro in header and footer causes infinite loop page reload

Summary

Confluence keeps reloading page if header or footer includes pagetree macro specifying root= parameter.

Environment

• Confluence with SPA

Steps to Reproduce

1. Go to https://example.atlassian.net/wiki/admin/custompagecontent.action, and set Footer as follows:

   Footer starts.
   {pagetree:root=}
   Footer ends.
   

2. Open any page and verify the following behaviors are happening:
   • Confluence warns "The following macros are not currently supported in the footer: pagetree"
   • Page reload causes infinite loop

Expected Results

Pagetree macro in header or footer doesn't cause infinite loop.

Actual Results

Pagetree macro in header or footer causes infinite loop.

Notes

• This started occurring after enabling SPA
• Infinite loop happens only if pagetree specifies root= parameter

Workaround

Remove root= parameter from the pagetree macro.