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Fix:(issue 2292) Empty positional args no longer break parse loop

Fix:(issue 2292) Empty positional args no longer break parse loop: a task in repo2rlenv-pr-runtime (Harbor dataset). Title: Empty positional arguments terminate parse loop, dropping remaining args

The task

**Title:** Empty positional arguments terminate parse loop, dropping remaining args

Part of FineEnvs/repo2rlenv-pr-runtime.