python/extra.i: Fix typo in code to keep a reference to a
FieldProcessor object, reported by Germán M. Bravo in github PR59.
python/smoketest.py: Add regression test.

git-svn-id: file:///home/xapian-svn/xapian/trunk@18258 6b2f1b92-a4f3-0310-943f-de3cbe41748b
python3/extra.i: Fix typo in code to keep a reference to a
FieldProcessor object, reported by Germán M. Bravo in github PR59.
python3/smoketest.py: Add regression test.

git-svn-id: file:///home/xapian-svn/xapian/trunk@18259 6b2f1b92-a4f3-0310-943f-de3cbe41748b