Created attachment 1337069 [details]
PostgreSQL default value

Description of problem:
The default value for enum field of serviceclass is not shown automatically when provisioning in web
E.g there are default values for postgresql_database, postgresql_user, postgresql_version, the first two works fine, but postgresql_version dafault value does not, which is field of enum type

Version-Release number of selected component (if applicable):
openshift v3.7.0-0.143.2

How reproducible:
Always

Steps to Reproduce:
1. log in webconsole of openshift cluster with servicecatalog enabled
2. Click the item PostgreSQL(APB) to provision
3. click "next" and "next" to the step for filling in parameters
4. view configuration page

Actual results:
there are default value for PostgreSQL Database Name, PostgreSQL User, but no default value for PostgreSQL Version of enum type

Expected results:
all default values are shown

Additional info:
# oc describe serviceclass dh-rhscl-postgresql-apb
<---snip--->
    Properties:
      Postgresql _ Database:
        Default:	admin
        Title:		PostgreSQL Database Name
        Type:		string
      Postgresql _ Password:
        Description:	A random alphanumeric string if left blank
        Title:		PostgreSQL Password
        Type:		string
      Postgresql _ User:
        Default:	admin
        Max Length:	63
        Title:		PostgreSQL User
        Type:		string
      Postgresql _ Version:
        Default:	9.5
        Enum:
          9.5
          9.4
        Title:	PostgreSQL Version
        Type:	string