Scenario:
Create a Master Page whereby the title of the page is set as an ‘editable component’.
Create a new page using that master page as a template.
Notice that the title of the new page is the same as the name in the master page.
If you type into that box or change the text, everything is fine, you can save and when you preview the name of this new page has been changed to what you typed.
HOWEVER, if you select all the text with the mouse, press backslash to remove all of the selected text, and then try to type it gives a component error that you can’t edit this field.
See this happen in this video:
