See the full description upstream here: https://dev.tiki.org/item8364
Attaching the screenshots and mockups here too for convenience. Even just by looking at #1 vs #2 and #3 vs #4, you will see what I mean.
Image no5 shows how this problem also affects Tiki Tracker list tables and such where there are editable cells with clickable icons/buttons in those cells. Those shouldn't wrap either, they should stay on the last line of the contents (or maybe vertically centered in the cell, or top-aligned?).