swiper/react: onRealIndexChange auto-trigger issue with non-zero initialSlide even if runCallbacksOnInit is disabled

[bestseob93]

Check that this is really a bug

• I confirm

Reproduction link

https://codesandbox.io/s/swiper-react-default-forked-h6sndy

Bug description

On initial render, passing a non-zero value to initialSlide as a Swiper prop triggers onRealIndexChange even if runCallbacksOnInit is disabled.

It only occurs in swiper/react and not in swiper.

Expected Behavior

initialSlide is a value that specifies the initial position, so those event listeners shouldn't be triggered on initial render.

Actual Behavior

No response

Swiper version

ALL

Platform/Target and Browser Versions

ALL

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

[bestseob93]

#6971