[Swiper Element] pagination container [part] attribute is missing after delayed pagination initialization

[Maximaximum]

Check that this is really a bug

• I confirm

Reproduction link

https://codesandbox.io/p/sandbox/swiper-pagination-forked-lm48kq?file=%2Findex.html%3A40%2C22

Bug description

If pagination is initialized via:

• swiper.pagination property (like document.querySelector("swiper-container").pagination = true;)
  or
• setAttribute() method (like document.querySelector("swiper-container").setAttribute("pagination", true)),

the [part] attribute is missing on the pagination container.

This is inconsistent with what happens if pagination is initialized during swiper creation (via <swiper-container pagination="true"></swiper-container>)

NOTE: This seems to be a purely Swiper Element bug, not a Swiper Core one. However, there is no github bug template for Swiper Element bugs.

Expected Behavior

Pagination container should look like:

<div part="pagination" class="swiper-pagination swiper-pagination-bullets swiper-pagination-horizontal"></div>

Actual Behavior

Pagination container looks like:

<div class="swiper-pagination swiper-pagination-bullets swiper-pagination-horizontal"></div>

Swiper version

10.1.0

Platform/Target and Browser Versions

Windows Chrome v116

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

[nolimits4web]

Please do search previous issues before posting new one

[Maximaximum]

#6899

Indeed, didn't notice that one, sorry. 😅