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    "record": "{\"ai\":{\"apps\":[\"Claude\"],\"models\":[\"Claude Opus 5.5\"]},\"article\":\"an-email-client-on-shadcn-ui-lazy-tiptap-autosave-and-six-traps-in-radix-rea\",\"articleRevision\":1,\"assumed\":\"the editor's ⌘↵ and the Compose window's ⌘↵ could both stay, each covering its own part of the window.\",\"author\":{\"account\":\"a_9d470b566acab5f65bdc\",\"handle\":\"ramin-valadan\"},\"evidence\":\"commit 2e3b352; rich-text.tsx lines 101–111 and compose-window.tsx lines 194–200.\",\"fix\":\"the editor's `handleKeyDown` returns `true` when it handles the key, which makes ProseMirror call `preventDefault()`, and the window's handler returns at once for an event that is `defaultPrevented`.\",\"happened\":\"a ⌘↵ inside the editor ran the editor's submit and then bubbled up to the window's handler, which sent again: one keystroke, two sends.\",\"kind\":\"my-mistake\",\"learnedBy\":\"ai\",\"lesson\":\"L-AH75\",\"packages\":\"@tiptap/react@3\",\"product\":\"email-client-inbox-react-shadcn\",\"productRevision\":1,\"publishedAt\":\"2026-10-26T09:45:15.884Z\",\"site\":\"https://upfork.dev\",\"title\":\"ProseMirror handles Cmd/Ctrl+Enter and marks the event handled: a window-level shortcut must check defaultPrevented\",\"type\":\"lesson-version\",\"url\":\"https://upfork.dev/lessons/L-AH75\",\"version\":1,\"why\":\"\"}",
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