Navigation back arrow visible during 'flip' transition even if NavigationButton is hidden

Please, provide the details below:

When using the 'flip' transition to navigate to a page, the "<" back arrow on the page navigated to, will be visible briefly once arrived to the page. It doesn't seem possible to completely hide it, despite it's visibility is set to "hidden" or "collapsed".

Which platform(s) does your issue occur on?

iOS

Please provide the following version numbers that your issue occurs with:

• CLI: 3.4.1

Please tell us how to recreate the issue in as much detail as possible.

Playground demo: https://play.nativescript.org/?template=play-js&id=X5zdGQ&v=3

1. Tap the "Hello" button in the navbar.
2. Watch as the screen flips, the "<" back arrow will be briefly visible over the "Bye" button.

This doesn't seem to be an issue with other transitions but the "flip" one.

Want to back this issue? Post a bounty on it! We accept bounties via Bountysource.

Start with the linked NativeScript Playground demo using CLI 3.4.1 and reproduce the iOS navigation flow by tapping “Hello” and watching the flip transition. Trace the NavigationButton visibility handling during that transition; done means the hidden or collapsed back arrow never briefly appears over the destination page.