swaitsandClaude Fable 5.1
b96735da01
std's append(true) opens without FILE_WRITE_DATA, so SetEndOfFile on that handle is refused (PermissionDenied) on Windows: the torn-line cut on open (chain::tests::an_unfinished_last_line_is_cut_away_on_open) and the roll-back of a failed append (chain and journal) could not truncate. Not a rename/share-delete problem: std already opens with all three sharing flags. chain::truncate cuts through a short-lived write handle on Windows and the handle itself elsewhere; the journal's roll-back uses it too. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HS8WZziDnyxunC23MUxrLp