icu/collator_rulebased_fuzzer: Use-of-uninitialized-value in isMatchAtCPBoundary

Detailed report: https://oss-fuzz.com/testcase?key=5644492876546048 Project: icu Fuzzer: libFuzzericucollatorrulebasedfuzzer Fuzz target binary: collatorrulebasedfuzzer Job Type: libfuzzermsanicu Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash State:...