Upgrade step added

Upgrade applies workflow changes to existing instances

plone/app/discussion/profiles/default/metadata.xml

@@ -1,5 +1,5 @@
 <metadata>
- <version>1001</version>
+ <version>1002</version>
  <dependencies>
   <dependency>profile-plone.resource:default</dependency>
   <dependency>profile-plone.app.registry:default</dependency>

plone/app/discussion/upgrades.py

@@ -73,3 +73,8 @@ def upgrade_comment_workflows(context):
 
 def add_js_to_plone_legacy(context):
     context.runImportStepFromProfile(default_profile, 'plone.app.registry')
+
+
+def extend_review_workflow(context):
+    """Apply changes made to review workflow."""
+    upgrade_comment_workflows_retain_current_workflow(context)

plone/app/discussion/upgrades.zcml

@@ -62,4 +62,15 @@
         />
   </genericsetup:upgradeSteps>
 
+  <genericsetup:upgradeSteps
+    source="1001"
+    destination="1002"
+    profile="plone.app.discussion:default">
+    <genericsetup:upgradeStep
+        title="Extended review workflow with states pending, published and new: rejected and spam"
+        description="Additional states allows moderator to review history of publishing and rejection"
+        handler=".upgrades.extend_review_workflow"
+        />
+</genericsetup:upgradeSteps>
+
 </configure>