[core] Clear all old run timestamps on SOSOR

Author: teo

core/environment/environment.go

@@ -189,7 +189,9 @@ func newEnvironment(userVars map[string]string, newId uid.ID) (env *Environment,
 					runStartTime := time.Now()
 					runStartTimeS := strconv.FormatInt(runStartTime.UnixMilli(), 10)
 					env.workflow.SetRuntimeVar("run_start_time_ms", runStartTimeS)
-					env.workflow.SetRuntimeVar("run_end_time_ms", "") // we delete previous SOEOR
+					env.workflow.SetRuntimeVar("run_start_completion_time_ms", "") // we delete previous EOSOR
+					env.workflow.SetRuntimeVar("run_end_time_ms", "")              // we delete previous SOEOR
+					env.workflow.SetRuntimeVar("run_end_completion_time_ms", "")   // we delete previous EOEOR
 
 					the.EventWriterWithTopic(topic.Run).WriteEventWithTimestamp(&pb.Ev_RunEvent{
 						EnvironmentId:    envId.String(),

core/environment/transition_startactivity.go

@@ -89,6 +89,7 @@ func (t StartActivityTransition) do(env *Environment) (err error) {
 				"fill_info_stable_beam_end_ms",
 				"run_type",
 				"run_start_time_ms",
+				"run_end_time_ms", // included to ensure that a cleared SOEOR timestamp is propagated to all tasks during START-STOP-START
 				"lhc_period",
 			} {
 				if value, ok := cvs[key]; ok {