Merge branch 'js/maint-all-implies-HEAD'

* js/maint-all-implies-HEAD:
  bundle: allow the same ref to be given more than once
  revision walker: include a detached HEAD in --all

diff --cc bundle.c
Simple merge

diff --cc object.h
Simple merge

diff --cc revision.c
Simple merge

diff --cc t/t5701-clone-local.sh
Simple merge