Page position in navigation menu is not maintained when moving a page from being a child of another page to being the last page in navigation

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.X
• Fix Version/s: 7.0.0 DXP FP58, 7.0.0 DXP SP9, 7.0.X
• Component/s: WCM > Navigation
• Labels:
  • ee-7.0.x-only
  • ee-ts
  • liferay-dxp-70-sp9
  • liferay-fixpack-de-58-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 0.25
• Fix Priority: 2
• Git Pull Request: https://github.com/liferay/liferay-portal-ee/pull/9028

Description:
When moving a page to be a child of another page, and then moving it to be the last page in navigation, the page's position is not maintained when refreshing the browser.

Steps to Reproduce:
Description:
1. Create 3 pages on the default site in a clean Liferay DXP bundle so that there are 4 pages total.
2. Move the third page (example name "test2") using the side-bar navigation and make it a child of the top page.
3. Refresh browser.
4. Now take the same page (test2) and move it from being a child to being the bottom page.
5. Refresh browser.

Expected Results:
"test2" should be the last page in navigation.

Actual Results:
"test2" is one page above the last page in navigation.

Additional Testing:
70x: 90eda5db5d1d471eb512eff243c146f5dfa05bd0
Issue reproduced in branch.
NOTE: In branch this issue is only reproducible when using the second or third page, not when using the 4th / bottom page.

Master: ebaa9c3e3fca25d35753065c4b4c47d196ed02ad
Could not test in master, the side bar navigation does not exist in master.