Issue 2818 - When I comment a story, I should be "Involved" by the story

taiga/projects/notifications/services.py

@@ -123,6 +123,9 @@ def analize_object_for_watchers(obj:object, history:object):
         for user in data["mentions"]:
             obj.watchers.add(user)
 
+    # Adding the person who edited the object to the watchers
+    if history.comment and not history.owner.is_system:
+        obj.watchers.add(history.owner)
 
 def _filter_by_permissions(obj, user):
     UserStory = apps.get_model("userstories", "UserStory")

tests/integration/test_notifications.py

@@ -100,6 +100,36 @@ def test_analize_object_for_watchers():
     assert issue.watchers.add.call_count == 2
 
 
+def test_analize_object_for_watchers_adding_owner_non_empty_comment():
+    user1 = f.UserFactory.create()
+
+    issue = MagicMock()
+    issue.description = "Foo"
+    issue.content = ""
+
+    history = MagicMock()
+    history.comment = "Comment"
+    history.owner = user1
+
+    services.analize_object_for_watchers(issue, history)
+    assert issue.watchers.add.call_count == 1
+
+
+def test_analize_object_for_watchers_no_adding_owner_empty_comment():
+    user1 = f.UserFactory.create()
+
+    issue = MagicMock()
+    issue.description = "Foo"
+    issue.content = ""
+
+    history = MagicMock()
+    history.comment = ""
+    history.owner = user1
+
+    services.analize_object_for_watchers(issue, history)
+    assert issue.watchers.add.call_count == 0
+
+
 def test_users_to_notify():
     project = f.ProjectFactory.create()
     role1 = f.RoleFactory.create(project=project, permissions=['view_issues'])