- Pointer drag: a press released outside the rail no longer lingers. The
release is heard on window while a press is pending, a move with the
primary button up cancels it, a new press cancels any previous drag, and
an existing Escape listener is removed before another is added, so no
orphaned capture listener can swallow Escape before the terminal.
- Inline group rename: a commit by blur leaves focus where the user put it;
Enter and Escape still return focus to the header.
- A failed layout read while edits are pending keeps the held layout and the
editor and re-reads once the write settles, so a 409 is still rebased.
Dropping unsaved work now always says so in a toast.
- "Move to <group>" quotes the group name (with a matching zh-CN pattern), so
a group named "New group" or "ungrouped" no longer reads or translates like
the fixed entries.
- The group menu glyph stays visible under (hover: none).
- The sessionStorage replay copy carries { owner, baseVersion, savedAt } and is
ignored for another owner, after 60 s, or against an older layout. A move
with no anchor carries no index, so a replay keeps the row last.
- A 400 that survives the re-read is reported as "Could not save tab groups."
- closeTabRailActionMenu() no longer removes the group menu's DOM.
- Cancelling "Delete group" returns focus to the header.
- Stale comments updated.
Aamer Akhter
bd4a1e9886