Intent of TestBufferApplyAfterCancel

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 3 tests
- server/ 3 tests
  - common/ 1 test
    
    effect/ 1 test
    
    go.temporal.io/server/common/effect/TestBufferApplyAfterCancel Introduced here
  - service/ 2 tests
    
    history/ 2 tests
    
    workflow/ 2 tests
    
    update/ 2 tests
    
    TestUpdateState/ 2 tests
    
    in_stateSent/ 2 tests
    
    fail_to_transition_to_stateAccepted/ 1 test
    
    go.temporal.io/server/service/history/workflow/update/TestUpdateState/in_stateSent/fail_to_transition_to_stateAccepted/stateCompleted_on_store_write_failure Inherited update.go ×1
    
    go.temporal.io/server/service/history/workflow/update/TestUpdateState/in_stateSent/fail_to_transition_to_stateRejected_on_store_write_failure Inherited update.go ×2