Global transaction rollback failed

调用系统自带的接口方法测试：http://127.0.0.1:8084/purchase/rollback
请求接口时候，调用到手动抛出异常后，可是并没有回滚，库存依旧是扣减了,如下图：
seata 0.5.0

Start by reproducing the request to the mentioned /purchase/rollback endpoint with Seata 0.5.0 and inspect the linked screenshot and sample behavior. No source file or test is named; done means the manually triggered exception causes the inventory deduction to roll back.

Written by the indexing model from the issue text.