- A row aligned on its own lost its alignment when the paragraph was then
given a colour, size or font: the rewrite left the rows' alignments out
once they had been applied. They now go with every rewrite.
- egui drops a box's selection while the box is unfocused, so after one
alignment or format a second choice went to the whole paragraph or box.
The selection is given back when formatting returns the focus.
- Redo from the menu or toolbar applied the box's typing first, a new edit
that dropped the document's Redo. It now redoes in the box, as the key does.