runtime error in the javascript evaluator when 'opening into' file.

[Marten de Vries]

Steps to reproduce:

- Start OT (a version that has open into support, so the current trunk).
- Open a file
- Open a file into that file
- See a crash in the console:
Traceback (most recent call last):
  File "modules/org/openteacher/enterers/words/words.py", line 307, in data
    return self._compose(word.get("answers", []))
  File "modules/org/openteacher/wordsString/javaScriptComposer/javaScriptComposer.py", line 48, in compose
    return self._js["compose"](*args, **kwargs)
  File "modules/org/openteacher/javaScript/evaluator/evaluator.py", line 449, in wrapper
    jsArgs = self._getJsArgs(args, kwargs)
  File "modules/org/openteacher/javaScript/evaluator/evaluator.py", line 434, in _getJsArgs
    return [self._toJSValue(arg) for arg in args]
  File "modules/org/openteacher/javaScript/evaluator/evaluator.py", line 353, in _toJSValue
    if jsObj.engine() == self._engine:
RuntimeError: super-class __init__() of type QScriptValue was never called
(multiple times, presumably for every word in the file)
- See that the QTableView isn't properly updated either.

Reproduced this on both my main pc and my Windows VM.

Interesting to research: the normal open function seems not to be affected by this while the open into function is.

[Marten de Vries (marten-de-vries)]

'Interesting to research: the normal open function seems not to be affected by this while the open into function is.'
That last idea let to the solution. (deepcopy.copy() not working on Qt objects). Added regression tests & fixed.