When doing a text selection by hold-click and drag across several paragraphs (tested when going down to up), sometimes the selection "loses" what was selected first during the drag and only selects things from a given point that is not the original click location. This point is sometimes at the paragraph break but not always (I had it placed around a citation in the second selected paragraph). The same bug can also happen if the selection is done using shift+up arrow (not necessarily at the same location though!).
This very much adds to the confusion already introduced by the wonky copy/cut and paste behaviour !