OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23417
Crash type: Heap-buffer-overflow WRITE 2 Crash state: OGRFeatureFormatDateTimeBuffer OGRFeature::GetFieldAsString OGRMemLayer::AlterFieldDefn
{ "severity": "HIGH", "fixed_range": "7e3771089616198d9329cfc9ed8f0620f4e5ea66:bb8555c956c75e4f6ae50db6d28e40b660d9a777" }