执行事务回滚报错

执行http://127.0.0.1:8084/purchase/commit 数据正常变化。
执行http://l127.0.0.1:8084/purchase/rollback 页面显示 false，server报错：远程主机强迫关闭了一个现有的连接。
AccountApplication错误日志：java.lang.RuntimeException: account branch exception。
OrderApplication错误日志:feign.FeignException: status 500 reading UserFeignClient#debit(String,BigDecimal); content:

Reproduce the purchase/commit and purchase/rollback requests, then inspect the AccountApplication and OrderApplication logs around the account branch exception and UserFeignClient#debit(String,BigDecimal) 500 response. Trace the rollback request through these application entry points and verify that rollback completes without the reported connection closure or Feign error.

Written by the indexing model from the issue text.