amp-next-page can't work with amp-bind

### Description

amp-next-page can cause amp-bind feature can't work when you put them together.

### Reproduction Steps

We can use the amp project offical example to test the bug.

step1: Open the amp-bind example page on official site. We will test the bug on the page.
https://playground.amp.dev/?url=https%3A%2F%2Fpreview.amp.dev%2Fdocumentation%2Fexamples%2Fcomponents%2Famp-bind

step2: Open and copy the relative amp-next-page codes to step1 page. Now we put amp-next-page and amp-bind component together.
https://playground.amp.dev/?url=https%3A%2F%2Fpreview.amp.dev%2Fdocumentation%2Fexamples%2Fcomponents%2Famp-next-page&_gl=1*1qbi6a4*_ga*YW1wLV9ReGVPMWt3OVYwWS1ZN3g4aGk0a2c.

step3: Scroll down to make sure amp-next-page works. Then you scroll back to top, click the amp-bind feature button. You will find the button can't work.

### Relevant Logs

```shell
no error log report.
```

### Browser(s) Affected

all
### OS(s) Affected

all

### Device(s) Affected

all

### AMP Version Affected

_No response_

Reproduce the issue using the linked amp-bind and amp-next-page Playground examples, then inspect the amp-next-page and amp-bind component entry points. Confirm whether loading the next page disables the existing amp-bind button, and use continued button functionality after scrolling as the completion check.

Written by the indexing model from the issue text.