Crash on deleting page

[LOVEJesus]

I just tried to delete a page in the 'Index' tree by using the context menu 'Delete Page' and the crash-message shown below popped up.
Extra information: Just before deleting I had changed the title of the page.

- Zim's Error Report:

This is zim 0.65
Platform: posix
Locale: en_GB UTF-8
FS encoding: UTF-8
Python: (2, 7, 3, 'final', 0)
Gtk: (2, 24, 10)
Pygtk: (2, 24, 0)
No bzr version-info found

======= Traceback =======
  File "/usr/lib/pymodules/python2.7/zim/gui/__init__.py", line 885, in _action_handler
    method(*arg)
  File "/usr/lib/pymodules/python2.7/zim/gui/__init__.py", line 1716, in delete_page
    self.notebook.trash_page(path, update_links, callback)
  File "/usr/lib/pymodules/python2.7/zim/notebook.py", line 1767, in trash_page
    return self._delete_page(path, update_links, callback, trash=True)
  File "/usr/lib/pymodules/python2.7/zim/notebook.py", line 1795, in _delete_page
    self.flush_page_cache(path)
  File "/usr/lib/pymodules/python2.7/zim/notebook.py", line 1395, in flush_page_cache
    assert not page.modified, 'BUG: Flushing page with unsaved changes'
AssertionError: BUG: Flushing page with unsaved changes

[Jaap Karssenberg (jaap.karssenberg)]

Should be fixed in latest version