[PATCH v2 0/6] Removing the guesswork of HEAD in "clone"

This reworks the old idea from 2008 ($gmane/102039) to teach upload-pack to say where symbolic refs are pointing at in the initial ref advertisement as a new capability "sym", and allow "git clone" to take advantage of that knowledge when deciding what branch to point at with the HEAD of the newly created repository.

Thanks go to Andreas Krey for reigniting the ember in a patch series a few weeks ago.

I did not do anything more than just compile it once; all the bugs in this round are mine (it is all new code after all).

Junio C Hamano (6):
  upload-pack.c: do not pass confusing cb_data to mark_our_ref()
  upload-pack: send symbolic ref information as capability
  upload-pack: send non-HEAD symbolic refs
  connect.c: make parse_feature_value() static
  connect: annotate refs with their symref information in get_remote_head()
  clone: test the new HEAD detection logic

 cache.h          |  1 -
 connect.c        | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 t/t5601-clone.sh | 11 ++++++++++
 upload-pack.c    | 51 +++++++++++++++++++++++++++++++++++++++------
 4 files changed, 118 insertions(+), 8 deletions(-)