Based on discussion 437034.
Typing fontSize in the RichTextFormatBar only set the size of the text to the first input character and then set the focus in the RichTextBox. Then the second input character is typed in the RichTextBox.
Comments: Duplicate of 19809
Typing fontSize in the RichTextFormatBar only set the size of the text to the first input character and then set the focus in the RichTextBox. Then the second input character is typed in the RichTextBox.
Comments: Duplicate of 19809