IMEs that commit without composition events (Doubao on macOS) inject their text asynchronously while the keyCode-229 keydown that started the commit is still pending. xterm ignores an insertText event while a keydown is pending, and its deferred textarea diff misses text that lands after its snapshot, so a fast run of digits lost characters (1234567890 arrived as 138). On macOS the terminal now delivers those commits itself (only commits during a pending IME keydown, and composition input without compositionstart); real compositions, keys xterm already sent and input without an IME keydown stay xterm's. Linux and Windows keep the fcitx5 ImeCommitGate. Keystrokes are written to the PTY as they come instead of per animation frame, and those typed while the shell is still starting are sent once it exists.
Co-authored-by: DomKing <[email protected]>
DomKingandDomKing
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