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iter to str() misprint with two objects.

iter to str() misprint with two objects.: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). Describe the bug <!--(Replace with a clear and concise description of what the bug is.)-- iter to str inside get display 's behaviour seems faulty. With it's default separators (sep","…

The task

Describe the bug <!--(Replace with a clear and concise description of what the bug is.)--> iter_to_str inside get_display_'s behaviour seems faulty. With it's default separators (sep"," , endsep=", and"), and 2 objects in the iterable, the in-game game return is " and "…

Part of XiaomiMiMo/MiMo-V2.6-RL-oss.