Description of problem:
When delete the secret, then restart a build which use the secret to access private repo, the build status is always Pending and blocked.

Version-Release number of selected component (if applicable):
openshift v3.0.1.0-338-g9dfce43
kubernetes v1.0.0

How reproducible:
Always

Steps to Reproduce:
1. Generate a ssh key and upload the public key to github
$ ssh-keygen
$ cat ~/.ssh/id_rsa.pub

2. Create a new project
$ osadm new-project test

3. Create a secret
$ cat secret.json
{
   "apiVersion": "v1beta3",
   "kind": "Secret",
   "metadata": {
      "name": "mysecret"
   },
   "data": {
      "ssh-privatekey": "<<< place here the result of base64 -w 0 ~/.ssh/id_rsa >>>"
   }
}
$ osc create -f secret.json -n test

4. Edit application-template-stibuild.json, add ref info to it like below:
$ cd /data/src/github.com/openshift/origin/examples/sample-app
$ vim application-template-stibuild.json
{
   "apiVersion": "v1beta1",
   "kind": "BuildConfig",
   "metadata": {
     "name": "ruby-sample-build",
...
     "source": {
       "git": {
         "uri": "git:openshift/ruby-hello-world.git"
       },
       "sourceSecretName": "mysecret",
       "type": "Git"
     },
}

5. Submit the application template for processing and create the application using the processed template:
$ osc process -n test -f application-template-stibuild.json | osc create -n test -f -

6. Start a build and check the build result
$ osc start-build $buildConfig -n test
$ osc get build -n test

7. Delete the secret
$ osc delete secret mysecret -n test

8. Restart build and check the build result
$ osc start-build $buildConfig -n test
$ osc get build -n test
$ osc build-logs $buildname -n test

Actual results:
8.The build ruby-sample-build-2 status is always Pending
$ osc get build -n test
NAME                  TYPE      STATUS     POD
ruby-sample-build-1   STI       Complete   ruby-sample-build-1
ruby-sample-build-2   STI       Pending    ruby-sample-build-2
$ osc build-logs ruby-sample-build-2 -n test
Error from server: timed out waiting for build

Expected results:
8.The build should be failed, and tip can't find secret in buildlogs.

Additional info:
On origin, this bug have fixed: https://bugzilla.redhat.com/show_bug.cgi?id=1220979