[PATCH 0/3] history: sign rewritten commits

This series updates `git history fixup`, `reword`, and `split` to honor `commit.gpgsign` as well as the `-S/--gpg-sign` and `--no-gpg-sign` options. It adds regression tests that cover configuration-driven signing, command-line overrides, and the handling of replayed descendant commits. Finally, it updates the history documentation to describe the new signing behavior and available options.

Souma (3):
  builtin/history: sign rewritten commits
  doc: document history signing options
  t345x: cover signed history rewrites

 Documentation/git-history.adoc | 14 ++++--
 builtin/history.c              | 80 ++++++++++++++++++++++++++--------
 replay.c                       | 13 +++---
 replay.h                       |  6 +++
 t/t3451-history-reword.sh      | 39 +++++++++++++++++
 t/t3452-history-split.sh       | 44 +++++++++++++++++++
 t/t3453-history-fixup.sh       | 39 +++++++++++++++++
 7 files changed, 209 insertions(+), 26 deletions(-)