Clang backend crashes when capturing VLA (variable length array) in lambda

The code

int main()
{
    int msize = 4;
    float arr[msize];
    [&arr]{};
    return 0;
}

leads to the clang backend to abort. More exactly, the syntax highlighting gets corrupted, variables can't be looked up by crtl+click, and the following message shows up ~3 times every second:

2020-03-14T23:27:35 Clang Code Model: Error: The clangbackend process has finished unexpectedly and was restarted.

It's limited to VLA: Capturing a "normal" array works fine.

Note: VLAs are not part of the C++ standard. But as VLAs are perfectly supported in QtCreator, I think their captures should also be.