The scroll bar of side bar is not in right position if including a page with Page Tree Macro

Issue Summary

An additional page tree can be included into side bar of space, if include a page  with page tree macro from space  sidebar setting.
However, in this situation, if click a page from original page tree, scroll bar position will move to the corresponding from included page tree, which is in higher position than original page tree.
Especially, if specified a page in Page macro, scroll bar position will move to the top. It is troublesome for users.

This is reproducible on Data Center: (yes) 

Steps to Reproduce

1. Create a page , with name of INDEX
2. Edit above page and insert a Page Tree macro
3. Go to Space tools > Look and Feel > Side bar, header and footer , input below to include INDEX into sidebar

   {INCLUDE:INDEX}
   

1. For each page, there will show twice in page tree of side bar (one from the included page with Page Tree macro, another one is original page tree)
2. Click a page link from the   original page tree

Expected Results

The page will be open, and the position of the scroll bar will not change.

Actual Results

The position of the scroll bar will be changed to corresponding page of page tree from included page .

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available