On Export: Duplication of smLink entries

[stefanCCS]

In meta.xml I have some smLink entries, which are visible correctly in meta data editor.
In my example (nearly) each phyical page has its own logical entry.
After export these smLinks are duplicated a lot.
It looks like that for each logical entry ALL phyisical pages (besides the ones, which are not linked to anything) a smLink-entry is created.
In my opinion this cannot happen during xslt processing. Therefore, this should be something related to Java-Part of export.

[matthias-ronge]

In the internal format, the pages are only assigned to the logical divisions of the lowest logical hierarchy level. So if a page is assigned to a chapter in a book, then it is only assigned to the chapter. It was simpler in terms of programming. During export, it is also assigned to the book. Otherwise, no pages would appear in the presentation when you select the book. So far, the behavior is intentional.

However, existing <smLink> are duplicated, i.e. from the same logical division it were referred to the same page several times . This needs to be corrected.

[matthias-ronge]

MetadataEditor, line 334 should actually prevent that. Needs checking why it is not doing its job. That seems to be an identification problem (equals()/hashCode()).

[andre-hohmann]

@stefanCCS : Could this be solved by the following issue?

• Multiple xlink:to elements for one xlink:from element in mets:structLink #5286

[stefanCCS]

@stefanCCS : Could this be solved by the following issue?

* [Multiple xlink:to elements for one xlink:from element in mets:structLink #5286](https://github.com/kitodo/kitodo-production/issues/5286)

I need to re-check this.
Will do this with Release 3.5 (which I have not installed so far).