Bug 1021355

Description of problem:

create an app and make some change in local repo, then rhc deploy with the commit ID, app can't deploy successfully and show the commit id is invalid.


Version-Release number of selected component (if applicable):
devenv_3921
rhc-1.16.0 (build from devenv_3921)


How reproducible:
Always


Steps to Reproduce:
1. create an app and disable auto-deploy
2. make any change and git push
3. rhc deploy with commit id


Actual results:
step2: 
[root@Daphne n6]# git add .; git commit -amp1; git push
[master ee68a39] p1
 Committer: root <root@Daphne.(none)
 1 files changed, 1 insertions(+), 1 deletions(-)
Counting objects: 5, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 281 bytes, done.
Total 3 (delta 2), reused 0 (delta 0)
To ssh://52648fb620dcc7e80500007e.rhcloud.com/~/git/n6.git/
   2df151f..ee68a39  master -> master
   
step3:
[root@Daphne n6]# rhc deploy ee68a39 -a n6
Deployment of git ref 'ee68a39' in progress for application n6 ...
Git ref ee68a39 is invalid
Error trying to deploy git ref. You can ssh to your application and try to deploy manually with:
gear deploy ee68a39
SSH command finished with exit status = 255


Expected results:
app can deploy successfully with commit id.


Additional info:
1. the same app can deploy successfully with branch name: rhc deploy master -a n6
2. if ssh into app and run gear deploy ee68a39, still got the message: ref ee68a39 is invalid