Relationship name changes after a Node edit

[ahonor]

To reproduce:

• Clean Yana database
• Import XML (eg, yana_import.xml)
• Navigate to ChildNodeList (/childNode/list) and notice the Relationship Names (e.g., test.server.com_Jetty [softwareInstallation], Main_Location_test.server.com [serverInstallation])
• Navigate to Nodes List (/node/list)
• Navigate to a Node and select it (e.g., Jetty[Software])
• Press the Edit button and change nothing and press Update
• Navigate back to the ChildNode List and review the Relationship Names (e.g., Main_Location_test.server.com [serverInstallation], test.server.com [sofwareInstallation])

Notice how the ChildNode relationship name has been overwritten with a new and unexpected value.

• Eg: test.server.com [sofwareInstallation] versus test.server.com_Jetty [softwareInstallation]

[ahonor]

This may have been fallout from #122.