Bug in Subentity

[enishemed]

There is one entity called "Projects" and one sub-entity called "Main Work Packages".

I have a project called "Project A" and the "Project A" has the following sub-entity items.

Project Name: Project A
Main Work Packages belongs to Project A:
- Training
- Development
- Testing


I create a new project called "Project B" and the "Project B" has three main work packages, one is "Training", the same as in "Project A".

When I create the "Training" main work packages for "Project B", the following error occured.