huggingface.co › papers › 2607.28887 Paper page - To Add Is Machine, To Delete Is Human: Measuring and Mitigating Deletion Avoidance in LLM Code Editing … Claude reached 97.7%, while GLM-5.2 still failed 12%, GPT-5.6 Sol 18%, and Qwen3-235B 42%. … Aug 4, 2026