repro lane · default prefetch

item 4

Add one comment, wait for the submit button to finish, then use the duplicated Home link in the shared nav above.

Fresh result: this item returns to the list with 1 comment. Stale result: the list can still show 0 comments until a hard reload.

What this page changes

Submitting a comment writes to the shared store and calls updateTag("items")plus the item tag. The page content is shared between both lanes; the intended difference is only how the nav's Home link behaves.