The zone page's breadcrumb (Zones › view) linked the view to a filtered
zone list while the view link below it opened the view. It is now a
single "← Zones" link back to the list with its filters, and a changeset
has "← History". View links carry where they came from, so the views page
offers "← example.org (external)" or "← Zones" (only the UI's own #/
addresses are accepted).
Switching a zone's tabs no longer blanks the page: the header and tabs
show at once and the previous tab stays, faded, until the next has
loaded. The router shows "Loading…" only for pages that take a while.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>