firestore:serializer_fuzzer: Crash in allocate_field

Detailed Report: https://oss-fuzz.com/testcase?key=5142301747970048 Project: firestore Fuzzing Engine: libFuzzer Fuzz Target: serializerfuzzer Job Type: libfuzzerubsanfirestore Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0xfffffffffffffffd Crash State: allocatefield pbdecbytes...