use-of-uninitialized-value in xmlDetectEBCDIC

use-of-uninitialized-value in xmlDetectEBCDIC: a task in MiMo-V2.6-RL-oss: Agentic RL Environments (MiMo RL release). MemorySanitizer: use-of-uninitialized-value in function xmlDetectEBCDIC in file libxml2/parserInternals.c