Revert this commit on the master-branch, since it is on a topic-branch

Revert "Correct the value for Action.TYPE.UPDATE_LIST"

This reverts commit ac5921d35eafd5aa8506dddcf988ff82b075818b.
Revert this commit on the master-branch, since it is on a topic-branch

Revert "Add support to get the Checklist from an Action."

This reverts commit 294849516e260416c0daa4db6b9fcfc84597334c.