Trac can't handle unicode curly quotes

[Dave Abrahams <dave@…>]

Trying to submit “this” causes an internal error.

[Dave Abrahams <dave@…>]

Well, OK, maybe it can sometimes, but see ​http://paste.lisp.org/display/43332. I've seen at least one example where removing the curly quotes made the error go away.

[cboos]

I confirm the issue which can be triggered when posting a comment with the above content. The corresponding backtrace is:

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 406, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.4/site-packages/trac/ticket/web_ui.py", line 290, in process_request
    self._do_save(req, db, ticket)
  File "/usr/lib/python2.4/site-packages/trac/ticket/web_ui.py", line 547, in _do_save
    self._validate_ticket(req, ticket)
  File "/usr/lib/python2.4/site-packages/trac/ticket/web_ui.py", line 77, in _validate_ticket
    for field, message in manipulator.validate_ticket(req, ticket):
  File "build/bdist.linux-x86_64/egg/tracspamfilter/adapters.py", line 67, in validate_ticket
  File "build/bdist.linux-x86_64/egg/tracspamfilter/api.py", line 131, in test
  File "build/bdist.linux-x86_64/egg/tracspamfilter/model.py", line 135, in insert
  File "/usr/lib/python2.4/site-packages/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "/usr/lib/python2.4/site-packages/trac/db/util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
ProgrammingError: current transaction is aborted, commands ignored until end of transaction block

Looks similar to #4087, so this must be a situation where r5390 was not enough.

[Dave Abrahams <dave@…>]

I think a minimal repro may be
“{{{x}}}”

[cboos]

#5848 and #6049 were closed as duplicates.

[cboos]

... #5311, #5577 and #5605 as well.

[cboos]

#7187 also - and translation related tickets all contain various complaints of translators getting this problem...

[jonas]

Fixed in [6990].