git describe fail

gistfile1.txt

[mjd@orca]:[~/src/moonpig]:[master]$ git branch
  active-charge
  active-charge-old
  c-account
  do-with-ledger
  findby
  install
* master
  ob-devel
  old-master
  overdraft
  replace-on-expiration
  update-modes
  xid-cache
[mjd@orca]:[~/src/moonpig]:[master]$ git describe --contains --all HEAD
do-with-ledger
[mjd@orca]:[~/src/moonpig]:[master]$ git status | head -1
# On branch master
[mjd@orca]:[~/src/moonpig]:[master]$ git rev-parse HEAD master do-with-ledger
7ae9fd5b8be726cdb36e1f0da5ab491db6af1f43
7ae9fd5b8be726cdb36e1f0da5ab491db6af1f43
7ae9fd5b8be726cdb36e1f0da5ab491db6af1f43