NullPointerException on update_all_content after moving down, then deleting a Boolean

STEPS:
------

• Create Namespace (mynamespace/http://www.ns.net/0.1)
• Create Document Type (mydoctype)
• Insert Text (MyText/mytext)
• Insert Boolean
• Insert Text (YourText/yourtext)
• Save&Done
• Update All Content
• Create Root Folder (myfolder)
• Create Document (mydocument < mydoctype)
• Save&Done
• Publish mydocument
• Edit mydoctype
• Move Boolean Down
• Delete Boolean
• Insert Boolean

Note the following messages in the Tomcat Console:

ERROR [org.hippoecm.frontend.plugin.config.impl.JcrClusterConfig$PluginList.add():171] /hippo:namespaces/mynamespace/mydoctype/editor:templates/default/boolean
ERROR [org.hippoecm.editor.type.JcrTypeDescriptor.addField():199] failed to resolve path null relative to node /hippo:namespaces/mynamespace/mydoctype/hipposysedit:nodetype/hipposysedit:nodetype[2]: empty path

• Insert Boolean

Note the following message in the Hippo CMS screen:

Path mynamespace:boolean already exists, not adding field

• Save&Done
• Update All Content

Note the operation is successful

The attached file 'error' is a copy of the messages found in the Tomcat Console at the end the Update All Content (NullPointerException).