↑ Watch the nav aboveThe fallback nav and the resolved nav both render the same lane links. That mirrors the original project shape more closely: the difference here is whether this lane's Home link keeps default prefetch or forces a fresh fetch on click.

repro lane · default prefetch

Repro lane

This lane leaves the duplicated Home link on default Link prefetch so the return navigation can reuse a prefetched list payload.

Repro flow: create an item, open it, add one comment, then click the duplicated Home link in the top nav.

Why this lane exists

The list page is cached with tagged data. The detail page mutates comments and calls updateTag("items"). The thing under test is whether the nav's Home link returns using a stale prefetched payload or waits for fresh RSC data.

Compare against the control lane

Create new item

This writes into the same shared store used by both lanes.

Items (2)

Shared data, different nav behavior