toggleAutoplay action does not animate first slide transition correctly for amp-carousel[type=slides] #17741
Description
What's the issue?
When calling toggleAutoplay on the amp-carousel[type=slides], the first slide move behaves instantly instead of with animation.
How do we reproduce the issue?
<amp-carousel id="slides" width="400" height="300" layout="responsive" type="slides" delay="500">
<amp-img src="./img/1.jpg" layout="fill" id="img-1">
</amp-img>
<amp-img src="./img/2.jpg" layout="fill" id="img-2">
</amp-img>
<amp-img src="./img/3.jpg" layout="fill" id="img-3">
</amp-img>
</amp-carousel>
<button id="toggler" on="tap:slides.toggleAutoplay">Toggle Autoplay</button>Click the button and observe.
What browsers are affected?
All
Which AMP version is affected?
Tested with latest release.