iOS keyboard shortcut for newline in list item doesn't work correctly

Steps to reproduce

In Chrome on a desktop, go to a list item, place the cursor in the middle of the text, and hit Ctrl-Shift-Enter. The paragraph will split within the same list item.

In iOS with a Bluetooth keyboard, repeat the above procedure.

Expected result

I expect to see the list item split at the cursor position, as in desktop Chrome.

Actual result

The split is only visible while the cursor is in the list item. When I move to another list item, the paragraph spacing vanishes. It reappears when I return to the list item.

Environment

iOS v. 12.4
Dynalist app v. 1.3.3