git:fuzz-commit-graph: Crash with empty stacktrace

Detailed Report: https://oss-fuzz.com/testcase?key=5911481507774464 Project: git Fuzzing Engine: libFuzzer Fuzz Target: fuzz-commit-graph Job Type: libfuzzerasangit Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x61d000002000 Crash State: NULL Sanitizer: address ASAN Recommended...