[Windows] TabbedPage current page indicator can be wrong.

[Mark-NC001]

Description

I have a tabbed page with two pages on it, Page 1 and Page 2. When the tabbed page opens, it correctly displays Page 1, and the bar is displayed under the title Page 1. Then select Page 2, and Page 2 is correctly shown and the bar is under the Page 2 title.

If I then select Page 2, close the page. Then re-open (a new instance of the tabbed page), Page 1 is correctly shown, but both the Page 1 title AND Page 2 title have the bar under them!

Steps to Reproduce

No response

Link to public reproduction project repository

https://github.com/Mark-NC001/TabbedPageIssue

Version with bug

8.0.93 SR9.3

Is this a regression from previous behavior?

Yes, this used to work in Xamarin.Forms

Last version that worked well

No response

Affected platforms

Windows

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

[Mark-NC001]

(Also, if anyone has a work-around for this, I'd very much appreciate any info as this is a big problem for my app!)

[kevinxufei]

I can repro this issue at iOS platform on the latest 17.13 Preview 1(8.0.93 & 8.0.92).