[fix][broker] fix topic policy is updated incorrectly when continuously use pulsar-admin to set policy#21026

TakaHiR07 wants to merge 1 commit intoapache:masterapache/pulsar:masterfrom

TakaHiR07:fix_update_topicPolicy_errorTakaHiR07/pulsar:fix_update_topicPolicy_errorCopy head branch name to clipboard