hashfrag.h: fix map_table key2node_id algorithm
hashfrag.h: fix map_table key2node_id algorithm

Superjom/SwiftSnails,Superjom/SwiftSnails,1900492968/SwiftSnails,1900492968/SwiftSnails,1900492968/SwiftSnails,1900492968/SwiftSnails,Superjom/SwiftSnails,Superjom/SwiftSnails