Button: Indicate When Data has Been Adjusted Before Closing/Saving Widget

[AlexGStapleton]

The flow would be something along these lines:

• When the user tries to save the widget, or after a change (change event). (undecided)
• We send the field value to the server.
• We clean the data and then return it.
• When the client receives the data, check if valid.
• If not, show an error, and clear the field.
• If it's valid, check if any changes were made.
• If changes were made, update the code and note it.