Improve processing commands

* If commands handler raises TerkaAddedToEntity exception, continue
  execution

terka/service_layer/handlers.py

@@ -575,7 +575,7 @@ def _process_extra_args(id, context, uow):
         if comment := context.get("comment"):
             uow.published_messages.append(
                 commands.CommentTask(id=id, text=comment))
-        if hours := context.get("time_spent"):
+        if hours := context.get("hours"):
             uow.published_messages.append(commands.TrackTask(id=id, hours=hours))
 
     @register(cmd=commands.ListTask)

terka/service_layer/messagebus.py

@@ -1,6 +1,8 @@
 from __future__ import annotations
 from typing import Type
+import logging
 
+from terka import exceptions
 from terka.adapters import publisher
 from terka.domain import commands, events
 from terka.service_layer import unit_of_work, handlers
@@ -41,9 +43,12 @@ def handle(self, message: Message, context: dict = {}):
     def handle_command(self, command: commands.Command,
                        context: dict) -> None:
         handler = self.command_handlers[type(command)]
-        if result := handler(command, self, context):
-            self.return_value = result
-        self.queue.extend(self.uow.collect_new_events())
+        try:
+            if result := handler(command, self, context):
+                self.return_value = result
+            self.queue.extend(self.uow.collect_new_events())
+        except exceptions.TaskAddedToEntity:
+            logging.warning("Task already added to compound entity")
 
     def handle_event(self, event: events.Event, context: dict) -> None:
         for handler in self.event_handlers[type(event)]: