Merge branch 'manual-todos-issuable-sidebar' into 'master'

Manually create todo for issuable

## What does this MR do?

Adds a button to the sidebar in issues & merge requests to allow users to manually create a todo item themselves.

## What are the relevant issue numbers?

Closes #15045 

## Screenshots (if relevant)

![Screen_Shot_2016-06-07_at_09.52.14](/uploads/00af70244c0589d19f241c3e85f3d63d/Screen_Shot_2016-06-07_at_09.52.14.png)

![Screen_Shot_2016-06-07_at_09.52.06](/uploads/e232b02208613a4a50cff4d1e6f119ff/Screen_Shot_2016-06-07_at_09.52.06.png)

![Screen_Shot_2016-06-07_at_09.51.14](/uploads/f1d36435d49ab882538ae2252bec8086/Screen_Shot_2016-06-07_at_09.51.14.png)

See merge request !4502

1 files changed, 1 insertions, 1 deletions

diff --git a/app/finders/todos_finder.rb b/app/finders/todos_finder.rb
index 1d88116d7d2..aa47c6c157e 100644
--- a/app/finders/todos_finder.rb
+++ b/app/finders/todos_finder.rb
@@ -36,7 +36,7 @@ class TodosFinder
   private
 
   def action_id?
-    action_id.present? && [Todo::ASSIGNED, Todo::MENTIONED, Todo::BUILD_FAILED].include?(action_id.to_i)
+    action_id.present? && [Todo::ASSIGNED, Todo::MENTIONED, Todo::BUILD_FAILED, Todo::MARKED].include?(action_id.to_i)
   end
 
   def action_id