use-of-uninitialized-value in cellToVertex

use-of-uninitialized-value in cellToVertex: a task in MiMo-V2.6-RL-harbor-cyber: MiMo-V2.6-RL Cyber (Harbor) (Harbor dataset). MemorySanitizer: use-of-uninitialized-value in function cellToVertex in file h3/src/h3lib/lib/vertex.c