This is an issue that might displease people using word to edit their text.
Steps to follow to reproduce:
- Create a page and save it
- Write some text on two rows
- Select all the text and make it Heading 1
- Click "Publish document"
- Open the page in the browser
Result: One of the headings is the title and the other one the heading. This isn't what the user editing the page in word expects to see.