transaction: actually delete file created during the transaction on rollback Transaction currently has two modes: - one where file created during the transaction are deleted on rollback, - one where file created during the transaction are truncated to 0 on rollback. Before this change, `hg rollback` and `hg recover` are using the "delete" mode and transaction abort is using the "truncate" option. This difference is never really explained. A long time ago, there was two code paths, with this divergence existing for unclear reasons. When the two code paths got merged into a single one, a boolean argument have been added to preserve this divergence, mostly probably as a cargo cult. The divergence is weird and induce bad surprises, and the truncate behavior is a bit odds, introducing other bad surprises (e.g. 08ecbdba186f) So solve this, we stop using the "truncate" behavior and unify on the "delete" behavior. Despite being currently more "common", the truncate behavior seems less natural, resulting in the transaction leaving empty file around. This is landed on default, early in the cycle, to help us catch problems that could emerge.

rhg: tweak rhg fallback code structure The goal here is to share the code that accesses the config setting, but also move it to the top-level, so that we can more easily change this code later. (in fact in Jane Street we want to make it choose chg in some cases)

journal: track bookmark deletion Bookmark deletion are now properly tracked by the journal extensions.

journal: show that we do not track deletion This was an oversight for the initial implementation.

contrib: upgrade merge-lists from clap v3 to clap v4 Mostly to avoid having clap v3 in our dependencies, due to https://osv.dev/vulnerability/GHSA-g98v-hv3f-hcfr (even though that seems pretty harmless).

compat: use cp -R in `test-revlog-delta-find.t` (issue6835) This follow POSIX and make things compatible with NetBSD.