Cannot create dulpicate (entity tree)

[Severino]

What is going wrong?

Description

When trying to create a duplicate of an empty object, I get the error:

POST-Anfrage an den Endpunkt /entity/14/duplicate ist mit Statuscode 500 fehlgeschlagen.

Steps to reproduce

1. Create Group Data Model (Top Level Entity)
2. Create Other Data Model
3. Adjust Group to only have Other as children
4. Create a Group in tree
5. Create a Other as child of that group
6. Try to create a duplicate using right click context menu

Expected behaviour

Create a duplicate

Actual behaviour

Error:

POST-Anfrage an den Endpunkt /entity/14/duplicate ist mit Statuscode 500 fehlgeschlagen.

Server configuration

Operating system: Ubuntu (Linux)

Version

release-0.10

[v1r0x]

fixed in latest release-0.10