Error of search

[LonFas]

I tryed to search "chain=dstnat"

---
This is zim 0.62
Platform: posix
Locale: ru_RU UTF-8
FS encoding: UTF-8
Python: (2, 7, 5, 'final', 0)
Gtk: (2, 24, 24)
Pygtk: (2, 24, 0)
Zim revision is:
  branch: zim-trunk
  revision: 738 <email address hidden>
  date: 2014-09-30 21:17:15 +0200

======= Traceback =======
  File "/usr/lib/python2.7/site-packages/zim/gui/searchdialog.py", line 92, in _search
    self.results_treeview.search(string)
  File "/usr/lib/python2.7/site-packages/zim/gui/searchdialog.py", line 177, in search
    self.selection.search(self.query, callback=self._search_callback)
  File "/usr/lib/python2.7/site-packages/zim/search.py", line 254, in search
    self.update(self._process_group(query.root, selection, callback))
  File "/usr/lib/python2.7/site-packages/zim/search.py", line 353, in _process_group
    contentterms, results, scope, group.operator, callback)
  File "/usr/lib/python2.7/site-packages/zim/search.py", line 497, in _process_content
    for page in generator:
  File "/usr/lib/python2.7/site-packages/zim/notebook.py", line 2011, in walk
    for p in self.index.walk(path):
  File "/usr/lib/python2.7/site-packages/zim/index.py", line 1283, in _walk
    for grandchild in self._walk(child, childpath):
  File "/usr/lib/python2.7/site-packages/zim/index.py", line 1276, in _walk
    cursor.execute('select * from pages where parent = ? order by sortkey, basename', (path.id,))
InterfaceError: Error binding parameter 0 - probably unsupported type.

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Then i try to repeat bug, it doesn't repeated