Scrollbar is rendered twice in <StrictMode>, auto value of slidesPerView not working properly

[xsjcTony]

Check that this is really a bug

• I confirm

Reproduction link

https://stackblitz.com/edit/vitejs-vite-kt3kug?file=src/App.tsx

Bug description

Scrollbar is rendered twice in <StrictMode>:

Please see reproduction

---

auto value of slidesPerView not working properly:

From my understanding, auto means it won't force each slide's width, but currently the behavior is equivalent as it's set to 1 (width: 100%). To temporarily work around this, I have to overwrite the style like this

.swiper-slide {
    width: auto !important;
}

Please also see reproduction

Expected Behavior

No response

Actual Behavior

No response

Swiper version

9.0.4

Platform/Target and Browser Versions

Chrome 108

Validations

• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
• Make sure this is a Swiper issue and not a framework-specific issue

Would you like to open a PR for this bug?

• I'm willing to open a PR

[xsjcTony]

@nolimits4web Really appreciate the fix for the scrollbar. But what about the slidesPerView="auto" issue? Is it expected that auto is equivalent to 1? I can't get a clear instruction in the doc on how auto should behave, but from my perspective it is definitely an issue that I have to override styles myself.