Current behavior is that when I have data in a doc and for example the first block is a header and I clean everything, the header could end up in the empty doc as:
<div class="ProseMirror"> <h3></h3> </div>
What I want to accomplish is that when I empty everything even with backspace that it becomes:
<div class="ProseMirror"> <p></p> </div>
I need to write a plugin for this, but what could be a good implementation.