### Steps to reproduce

1. Create a work package custom field of type Hierarchy

2. Export the work package to Begin of the insertionPDF End of the insertion Begin of the deletion pdfEnd of the deletion


### What is the buggy behavior?

* In the exported hierarchy field the output is only the item name (without displaying the full hierarchy)

* This create confution when two hierarchy branches have an item of the same name


For exemple if the hierarchy looks like this Begin of the insertion: End of the insertion Begin of the deletion : End of the deletion

* Supplier (SUPL)

* Documentation (DOC)

* Customer (CUST)

* Documentation (DOC)


There is no way to differentiate those two items in the Begin of the insertionPDFexport (also CSV/XLS if the field is used as a column in the work package table).End of the insertion Begin of the deletion pdf export.End of the deletion

### What is the expected behavior?

* The Begin of the insertionformatting showsEnd of the insertion Begin of the deletion pdf field should showEnd of the deletion the full hierarchy Begin of the insertionpath for each itemEnd of the insertion Begin of the deletion as displayed in the browser  (i.e : `Supplier / Documentation` )

* or to save space on pdf export with long hierarchies, the hierarchy could be displayed as short names  (i.e :  `SUPL / DOC` )End of the deletion


### Screenshots and other files

<figure class="image image_resized op-uc-figure" style="width:678px;"><div class="op-uc-figure--content"><img class="op-uc-image" src="/api/v3/attachments/257671/content"></div><figcaption class="op-uc-figure--description">Behaviour on Open Project V15.1.0</figcaption></figure>

### Environment information

**OpenProject installation type**

* Self-Hosted

* Packaged installation

* Ubuntu


**OpenProject version**

_V15.0.1_