Some settings in a Timeline do not dirty the blueprint upon being changed

When the following settings are changed in a Timeline in a Blueprint, the blueprint is not dirtied, meaning that the changes won't be compiled or saved upon playing or using Save All.

Length
Use Last Keyframe?
Autoplay
Loop
Replicated
Ignore Time Dilation

Regression?: No
This also occurred in 4.13

1. Create a new project
2. Create a new blueprint based off of Actor
3. Add a Timeline to the event graph
4. Double click the Timeline to open its settings
5. Add a float curve and compile/save the blueprint
6. Change the Length, Use Last Keyframe?, Autoplay, Loop, Replicated, Ignore Time Dilation settings
   Result: Upon changing these settings, the blueprint is not dirtied (prompted for compile or save)
   Expected: The blueprint is prompted to be compiled and saved, making it automatically be compiled upon play