core/txpool/legacypool: handle missing head in reset #27479#1909

AnilChinchawale merged 1 commit intoXinFinOrg:dev-upgradeXinFinOrg/XDPoSChain:dev-upgradefrom

gzliudan:fix-txpoolgzliudan/XDPoSChain:fix-txpoolCopy head branch name to clipboard