git:fuzz-commit-graph: Crash in get_be32

Detailed Report: https://oss-fuzz.com/testcase?key=5737278384898048 Project: git Fuzzing Engine: honggfuzz Fuzz Target: fuzz-commit-graph Job Type: honggfuzzasangit Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x7fffe173e000 Crash State: getbe32 parsecommitgraph fuzz-commit-graph.c...