C2466 emitted twice for the same construct by Dmitry Me

This behavior is observed in 10.0.40219.1 SP1Rel

I have this code:

int _tmain(int argc, _TCHAR* argv[])
{
    char source[0] = {};
    return 0;
}

I compile it and get this output:

1>------ Build started: Project: AnalyzeTest, Configuration: Release Win32 ------
1> AnalyzeTest.cpp
1>AnalyzeTest.cpp(56): error C2466: cannot allocate an array of constant size 0
1>AnalyzeTest.cpp(56): error C2466: cannot allocate an array of constant size 0
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Here C2466 is output twice. This is weird - it should only be emitted once.