Unhandled exception when editing Table Formula with X Argument

[Yuri05]

The OK button in the table object/Xarg object selection window can be clicked even if no object was selected.

Then the exception comes.

Application:
MoBi® 12.0.0

Object reference not set to an instance of an object.

Stack trace:

at OSPSuite.Core.Domain.ObjectPathFactory.addPathEntry(IEntity entity, ObjectPath objectPath)
   at OSPSuite.Core.Domain.ObjectPathFactory.CreateAbsoluteObjectPath(IEntity entity)
   at MoBi.Presentation.Presenter.SelectReferencePresenterBase.CreatePathFor(IEntity selection) in C:\SW-Dev\MoBi\branches\11.0\src\MoBi.Presentation\Presenter\SelectReferencePresenterBase.cs:line 190
   at MoBi.Presentation.Presenter.SelectReferencePresenterBase.GetSelection() in C:\SW-Dev\MoBi\branches\11.0\src\MoBi.Presentation\Presenter\SelectReferencePresenterBase.cs:line 185
   at MoBi.Presentation.Presenter.SelectFormulaUsablePathPresenter.getSelectedPath() in C:\SW-Dev\MoBi\branches\11.0\src\MoBi.Presentation\Presenter\SelectFormulaUsablePathPresenter.cs:line 51
   at MoBi.Presentation.Presenter.SelectFormulaUsablePathPresenter.GetSelection() in C:\SW-Dev\MoBi\branches\11.0\src\MoBi.Presentation\Presenter\SelectFormulaUsablePathPresenter.cs:line 45
   at MoBi.Presentation.Presenter.EditTableFormulaWithXArgumentFormulaPresenter.selectFormulaUsablePath(Func`2 predicate, String caption) in C:\SW-Dev\MoBi\branches\11.0\src\MoBi.Presentation\Presenter\EditTableFormulaWithXArgumentFormulaPresenter.cs:line 95
   at MoBi.Presentation.Presenter.EditTableFormulaWithXArgumentFormulaPresenter.SetTableObjectPath() in C:\SW-Dev\MoBi\branches\11.0\src\MoBi.Presentation\Presenter\EditTableFormulaWithXArgumentFormulaPresenter.cs:line 75
   at OSPSuite.UI.Controls.BaseUserControl.<>c__DisplayClass23_0.<OnEvent>b__0()
   at OSPSuite.Utility.Extensions.ExceptionExtensions.DoWithinExceptionHandler(Object callerObject, Action actionToExecute)