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Fix double message render glitch

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Jack Kingsman
2026-03-01 14:37:40 -08:00
parent 330c5efb31
commit 9c4b049c8d
1 changed files with 8 additions and 3 deletions
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frontend/src/hooks/useConversationMessages.ts
+8 -3
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@@ -381,10 +381,15 @@ export function useConversationMessages(
}
seenMessageContent.current.add(contentKey);
// Limit set size to prevent memory issues (keep last 500)
// Limit set size to prevent memory issues — rebuild from current messages
// so visible messages always remain in the dedup set (insertion-order slicing
// could evict keys for still-displayed messages, allowing echo duplicates).
if (seenMessageContent.current.size > 1000) {
const entries = Array.from(seenMessageContent.current);
seenMessageContent.current = new Set(entries.slice(-500));
seenMessageContent.current = new Set(
messagesRef.current.map((m) => getMessageContentKey(m))
);
// Re-add the just-inserted key in case it's a new message not yet in state
seenMessageContent.current.add(contentKey);
}
setMessages((prev) => {