[issue-229] do not persist legacy property-backed-beans from legacy p…

…ropertybackedbeans on init

This fix prevents property-backed-beans configuration being persisted at init.
This mitigates issues where breaking configuration is duplicated in the database,
ensuring that simple removal of the broken configuration allows for startup.

repository/src/main/java/org/orderofthebee/addons/support/tools/repo/config/PropertyBackedBeanPersister.java

@@ -280,12 +280,21 @@ protected void handleNewPropertyBackedBean(final PropertyBackedBean propertyBack
 
         // for some reason most subsystem beans are by default not configured to broadcast property changes
         // JMX only works because it is the only tool / component dealing with this, and only performs direct calls
-        if (propertyBackedBean instanceof AbstractPropertyBackedBean)
+        try
         {
-            ((AbstractPropertyBackedBean) propertyBackedBean).setSaveSetProperty(true);
+            if (propertyBackedBean instanceof AbstractPropertyBackedBean)
+            {
+                ((AbstractPropertyBackedBean) propertyBackedBean).setSaveSetProperty(false);
+            }
+            this.initializeFromPersistedProperties(name, propertyBackedBean);
+        }
+        finally
+        {
+            if (propertyBackedBean instanceof AbstractPropertyBackedBean)
+            {
+                ((AbstractPropertyBackedBean) propertyBackedBean).setSaveSetProperty(true);
+            }
         }
-
-        this.initializeFromPersistedProperties(name, propertyBackedBean);
     }
 
     protected void handleRemovedPropertyBackedBean(final PropertyBackedBean propertyBackedBean, final boolean permanent)