Volta text bug [Musescore 2.0.2/Windows]

Hello,

I changed the text of a volta from "2." to "2. & 3.". The saved file couldn't be opened later on because of an "XML-Error".
I then opened the musescore file in my XML editor and the problem was indeed that text.

<Volta id="3">
<beginText>
<text>2. & 3.</text>
</beginText>
<endings>2</endings>
</Volta>
</code>

I changed the text manually back to just "2." and that repaired the file and it could be opened by MuseScore again. So special Chars like the ampersand should be escaped in volta texts (and maybe other texts too, I don't tested if it works with other texts)