When changing the value of a field in the ribbon, the focus can be lost on the RichText. If a contextual tab (table, picture ...) was opened, it disappears, even if the field (whose value was changed) was in that tab.

This can happen :

• when losing focus on a text field whose texte has changed
• when clicking the spin button on a number spin field
• when pressing up or down (on your keyboard) inside a number spin field.