Bug#933709: apt-xapian-index: UnicodeDecodeError after update

[Antonio <antdev66@gmail.com>]

Package: apt-xapian-index
Version: 0.50
Severity: normal

Dear maintainer,

after updating to version 0.50 I found this error in the log file:

/etc/cron.weekly/apt-xapian-index:
Traceback (most recent call last):
  File "/usr/sbin/update-apt-xapian-index", line 104, in <module>
    indexer.incrementalUpdate()
  File "/usr/lib/python3/dist-packages/axi/indexer.py", line 685, in incrementalUpdate
    self.updateIndex(dbpath)
  File "/usr/lib/python3/dist-packages/axi/indexer.py", line 663, in updateIndex
    db.replace_document(outdated[pkg.name], self.get_document_from_apt(pkg))
  File "/usr/lib/python3/dist-packages/axi/indexer.py", line 539, in get_document_from_apt
    addon.obj.index(document, pkg)
  File "/usr/share/apt-xapian-index/plugins/descriptions.py", line 108, in index
    self.indexer.index_text_without_positions(version.raw_description)
  File "/usr/lib/python3/dist-packages/apt/package.py", line 607, in raw_description
    return self._records.long_desc
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe5 in position 66: invalid continuation byte

while the previous version 0.49 works well.

Thanks,
Antonio