Comment 4 for bug 483268

I have already provided the information to upstream, but they have not responded to the reopening request yet.
Here is a (trivial) patch that solves the issue. It sets the permissions of all imported files to 'Normal', which may not be the best solution, but as C# is a windows-centric language I cannot think of a better solution (by the way, I am not a C# programmer).
I am also submitting this patch upstream.