unstable_cache + non-Latin-1 searchParams

next: 16.3.0

key: bar

cachedAt: 2026-08-09T08:52:14.408Z

token: bff36in0

callbackRuns (this instance): 1

Reload with ?key=bar&extra=english: cachedAt should stay frozen. Reload with ?key=bar&extra=中國人: if cachedAt changes every time, the bug is present. extra is never read by this page.