Nightly 2014-03-21 crashes upon clicking menu "Plugin Manager" - if a plugin exists
I just put MuseScoreNightly-2014-03-21-1908-5aa775f onto my system, and also let it create a fresh user profile as instructed in http://prereleases.musescore.org/windows/nightly/
When I click Plugins→Plugin Manager, Musescore crashes.
One experiment I tried may hold a clue: I tried emptying the plugins directories (both in my C:\Program Files\MuseScoreNightly and also my user profiles). If there are no plugins, then Musescore does not crash upon clicking Plugins→Plugin Manager. But if I put even a single plugin into either of the plugins folders (I tried copying them alphabetically one by one, so I started with break.qml), then the crash occurs.
The popup that appears makes me think that whatever happens is "caught" by something in Musescore (Visual C++ runtime lib). But in particular, no drwtsn32.dmp file gets created.
The most recent nightly build I used was in November 2013. This problem didn't happen on my computer with the nightly back then, nor the few nightlies I tried earlier than that.
My system is WinXP(Pro)X86-SP3.