In my schema the main/first content of a listitem may be a paragraph or heading (or some other simple textblock). Heading in the default and in my schema is marked as defining. I’m finding that when pasting <ul> <li><h1/></li> <li><h1/></li> </ul> that the first list item is lost.
I created a glitch to demonstrate. The steps are to select and copy the entire list in the div at the bottom. Then put focus into the prosemirror editor at the top and paste. The result looks like this:
If heading were not marked as defining this doesn’t happen but I think I want heading to remain defining.I’m not sure why the defining of the content of the paste is playing a role here. I see that during the paste the slice of such has an open start/end of 3 so the starting and ending ul/li/h1 are considered open. I thought defining was more about the target of the paste though honestly if the current target is h1 (i.e. in the sample you changed the type in the editor to heading->level1 before pasting) that I’d still want to keep the list and both list items.