use-of-uninitialized-value in isPrefixAtLocation

use-of-uninitialized-value in isPrefixAtLocation: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). MemorySanitizer: use-of-uninitialized-value in function isPrefixAtLocation in file capstonemaster/arch/X86/X86DisassemblerDecoder.c