Preserve attrs with imports_granularity=Item

[9999years]

Closes #5030

On the road to #4991

[ytmimi]

Thanks for the PR!

looks like a pretty simple fix to just pass the attributes along, which is great. When you have a chance, could you add test cases for the other variants: Preserve, Crate, Module, Item, One.

[9999years]

#5030 doesn't concern the other variants, which have harder-to-fix bugs. I'll see if I can work on them but it'll be in a separate PR.

[calebcartwright]

Thank you for the PR! This seems to be a duplicate of #5031 to me though, and the interactions with the other variants was one of the outstanding questions still unresolved over there (#5031 (comment))

As such, I think it' be best to either extend the resolution as suggested in #5031 or as @ytmimi suggested, add some cases for other variants to make sure there's no unanticipated side effects.

I don't recall offhand whether the diff is currently on a call path that's only reachable with the Item variant, but this portion of the codebase gets refactored frequently enough that the tests are still valuable even if only as a preventative/defensive measure

[calebcartwright]

Closing in favor of #5314