(cbor) Uncaught exception in `CBORParser._nextChunkedByte2` (by ossfuzzer)

[cowtowncoder]

(from https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32772)

Looks like there is a buffer boundary problem (ArrayIndexOutOfBoundsException) for 4-byte UTF-8 character (surrogate pairs) in chunked-text mode. Should be gracefully caught and reported (most likely truncated code point encoding).