[EP-tech] Export subjects in 3.3.13 creates an empty XML

[pgasinos at gmail.com (pgasinos pgs)]

I have imported subject tree and converted in XML as usual (I have done it
many times before in 3.3.12)

/usr/share/eprints3/bin/import_subjects <archive id>
/usr/share/eprints3/bin/export <archive id> subject XML >
/usr/share/eprints3/archives/<archive id>/cfg/subjects.xml

but the result is an empty xml. I tried to reindex

./bin/epadmin reindex <archive id> subject and the result is:

You are about to reindex "subject" in the <archive id> repository.
This can take some time.

Number of records in set: 1
Continue [y/n] ? es
'el' is not a supported Xapian stem language, using English instead
Use of uninitialized value in concatenation (.) or string at (eval 97)
line 54, <DATA> line 960.

I have attached the created xml file. What could be the problem?

Kostas Pgasinos
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