Description of problem:
When using oc edit to update the bc, and fill with the wrong type , when type :wq , vim exited successfully.

Version-Release number of selected component (if applicable):
openshift v3.2.0.20
kubernetes v1.2.0-36-g4a3f9c5
etcd 2.2.5


How reproducible:
always

Steps to Reproduce:
1.Create a project
2.Create a app
oc process -f https://raw.githubusercontent.com/openshift-qe/v3-testfiles/master/image/language-image-templates/php-56-rhel7-stibuild.json| oc create -f -
3.edit the bc update the source type to Git123
oc edit bc php-sample-build
spec:
..............
source:
    git:
      uri: https://github.com/wzheng1/php-example-app
    type: Git123
4. edit bc update the build strategy to Source123
strategy:
    sourceStrategy:
      from:
        kind: ImageStreamTag
        name: php-56-rhel7:latest
    type: Source123
Actual results:

step 3 and 4 succeed.
Expected results:
Should not save sucessfully and pop out the wrong message,validation should be more restrict.
Additional info:
There is a bug before https://bugzilla.redhat.com/show_bug.cgi?id=1279288 , which fixed this , but after update the bc structure , It appears again.
code here:
https://github.com/openshift/origin/blob/master/pkg/build/api/validation/validation.go#L373
https://github.com/openshift/origin/blob/master/pkg/build/api/validation/validation.go#L132