use-of-uninitialized-value in value barrier<unsigned

use-of-uninitialized-value in value barrier<unsigned: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). MemorySanitizer: use-of-uninitialized-value in function value barrier<unsigned long in file botan/build/include/internal/botan/internal/ct utils.h