From 3b052d3eb656adc5ff87a114645b41ea22736466 Mon Sep 17 00:00:00 2001
From: Alex Gleason <alex@alexgleason.me>
Date: Fri, 17 Apr 2026 16:47:09 -0500
Subject: [PATCH] Fix naddr lookup for legacy replaceable kinds (0, 3, etc.)

useAddrEvent only treated kinds in 10000-19999 as replaceable, so any
naddr with a kind outside that range got a '#d' filter applied. For
legacy replaceable kinds like 0 and 3, real events don't carry a 'd'
tag, so the query matched nothing even when the relay had the event.

Invert the check to only apply the '#d' filter for true addressable
events (30000-39999). Legacy replaceable kinds and 10000-19999 are
now queried by kind+author alone.

Regression-of: 9b5df28b
---
 src/hooks/useEvent.ts | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/hooks/useEvent.ts b/src/hooks/useEvent.ts
index b0c27dfe..9b993d73 100644
--- a/src/hooks/useEvent.ts
+++ b/src/hooks/useEvent.ts
@@ -112,11 +112,14 @@ export function useAddrEvent(addr: AddrCoords | undefined, relays?: string[]) {
     queryKey: ['addr-event', addr?.kind ?? 0, addr?.pubkey ?? '', addr?.identifier ?? ''],
     queryFn: async () => {
       if (!addr) return null;
-      // Replaceable events (10000-19999) are identified by kind+author only — no d-tag.
-      // Addressable events (30000-39999) additionally need the d-tag filter.
-      const isReplaceable = addr.kind >= 10000 && addr.kind < 20000;
+      // Only addressable events (30000-39999) use the d-tag for identification.
+      // Everything else — legacy replaceable kinds (0, 3, etc.) and NIP-01
+      // replaceable events (10000-19999) — is identified by kind+author alone.
+      // Querying with `#d: [""]` against a non-addressable kind returns nothing,
+      // because real replaceable events don't carry an empty `d` tag.
+      const isAddressable = addr.kind >= 30000 && addr.kind < 40000;
       const baseFilter: NostrFilter = { kinds: [addr.kind], authors: [addr.pubkey], limit: 1 };
-      if (!isReplaceable) {
+      if (isAddressable) {
         baseFilter['#d'] = [addr.identifier];
       }
       const filter: NostrFilter[] = [baseFilter];