use-of-uninitialized-value in nettle ecc mod inv

use-of-uninitialized-value in nettle ecc mod inv: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). MemorySanitizer: use-of-uninitialized-value in function nettle ecc mod inv in file nettle/ecc-mod-inv.c