Dialog "Styles" (toolbar button "Edit CSS Style"):
When the checkbox "Insert span at selection" is checked, the style is applied both to the inserted span that wraps the selected text and to the paragraph that contains it. I suppose the style must be applied to the inserted span only.
Dialog "Styles" (toolbar button "Edit CSS Style"): When the checkbox "Insert span at selection" is checked, the style is applied both to the inserted span that wraps the selected text and to the paragraph that contains it. I suppose the style must be applied to the inserted span only.