Version

2.0.2

Reproduction link

https://play.nativescript.org/?template=play-vue&id=PTvaZr&v=3

Platform and OS info

iOS 12 / NativeScript 5 (and presumably 4 in Playground) / macOS Mojave

Steps to reproduce

This issue started after the fix for #339 was rolled out in 2.0.1/2.0.2. As such, the Playground link above will not replicate this bug because it's using 2.0.0. I've tested the repro code locally with 2.0.2 and it experiences the issue.

This app utilizes multiple frames to allow a custom "tab bar". It's a pretty simple tab bar implementation, each tab get its own frame so they can navigate independently, and tabs are lazily loaded.

After 2.01/2.0.2 (not sure specifically which), the first button on Step 1 will stop working if you tab back over to the first tab, and back to the second.

Step 1 is listening for the first button's custom @tap event, while it's listening for the second one's native @tap event, hence the difference.

What is expected?

Both buttons should continue to work.

What is actually happening?

The custom component's event is not fired / handled.

It was pretty difficult to figure out what exactly the issue was, but I was finally able to minimize the test case as much as I could. Let me know if you need any additional information or clarification!

(Also thank you for fixing #339 so promptly!)

Update: To clarify, the @tap event is firing on the custom button's button. It's the parent component that is not responding to the $emit. As such, this affects any custom $emit, not just taps.