If there are multiple items inside a listitem, too much space is added between the listitem and the next listitem. The items can be any 2+ of the tags para, screen, itemizedlist, orderedlist, etc.
Is this different to bug #66163? (If so, how?)
No, it is the same. I must have filed it twice by mistake. *** This bug has been marked as a duplicate of 66163 ***