Cleaner fix to model import issue

ckan/lib/dictization/model_dictize.py

@@ -1,7 +1,6 @@
 import datetime
 from pylons import config
 from sqlalchemy.sql import select
-import ckan.model
 import ckan.misc as misc
 import ckan.logic as logic
 import ckan.plugins as plugins
@@ -266,7 +265,7 @@ def package_dictize(pkg, context):
 
     # Extra properties from the domain object
     # We need an actual Package object for this, not a PackageRevision
-    if isinstance(pkg, ckan.model.PackageRevision):
+    if isinstance(pkg, model.PackageRevision):
         pkg = model.Package.get(pkg.id)
 
     # isopen