Dividers (horizontal rule) are not saved and content after them is lost

Follow this steps to reproduce:

• edit a page with BlockNote
• insert a Divider between two pagraphs
• save and view

The divider (horizontal rule) is not saved. Moreover, the paragraph that follows the divider is lost. On the JavaScript console I can see this error:

Uncaught (in promise) Error: TODO: add support for BlockNote dividers to UniAst
    convertBlock bn-to-uniast.ts:292

which is unexpected to me, since UniAst supports a break block that the parser / renderer on the server side is properly mapping to the "horizontal line" XDOM block. I guess the only missing part is converting from the BlockNote divider to the UniAst "break" block?