A process killed between keepAside writing the answer's temporary file and linking it to its name leaves a hidden .rp-return-<hex>.tmp in the review's directory, which nothing removes later.

A process killed between keepAside writing the answer's temporary file and linking it to its name leaves a hidden .rp-return-<hex>.tmp in the review's directory, which nothing removes later.

Grounds

• pursued: a stale .<route>-return-<hex>.tmp in a review's directory disappears on the next keepAside there while a fresh one, a look-alike name and a directory stand; TestKeepingAsideSweepsATemporaryFileAKilledProcessLeft would show it wrong by failing, as would any report of a live writer's temporary file vanishing before its link (which keepAside also degrades through createAside).