hx-trigger with auxclick event is not working as expected

In most Linux systems (maybe in MacOS too), you can copy something and paste it with the middle click ([auxclick](https://developer.mozilla.org/en-US/docs/Web/API/Element/auxclick_event)).

So in the following example, when you have copied something and try to paste it to the input with the middle click, it fires the http request and it sends an empty value.

```html

```

Reproduce the supplied form example in a Linux browser: copy text, then middle-click the #otp input and observe the request value. Start by tracing how hx-trigger handles auxclick from that input; done means the request includes the pasted value rather than an empty value.

Written by the indexing model from the issue text.