dav1d/dav1d_fuzzer_mt: Use-of-uninitialized-value in iclip

Project: https://code.videolan.org/videolan/dav1d.git Detailed report: https://oss-fuzz.com/testcase?key=5746740678885376 Project: dav1d Fuzzer: libFuzzerdav1dfuzzermt Fuzz target binary: dav1dfuzzermt Job Type: libfuzzermsandav1d Platform Id: linux Crash Type: Use-of-uninitialized-value Crash...