[Bugfix][Spec Decode] Fix wrong valid_mask for padded speculation when chunked prefill occurs#26231

benchislett merged 2 commits intovllm-project:mainvllm-project/vllm:mainfrom

seven-mile:fix-spec-padded-inputs-wrong-maskseven-mile/vllm:fix-spec-padded-inputs-wrong-maskCopy head branch name to clipboard