use-of-uninitialized-value in Archive::ConvertAttributes()

use-of-uninitialized-value in Archive::ConvertAttributes(): a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). MemorySanitizer: use-of-uninitialized-value in function Archive::ConvertAttributes() in file unrar/arcread.cpp