fix blockquote toggle bug
fix blockquote toggle bug

ppoo24/pen,bushuai/pen,fritx/pen,thomas-mcdonald/pen,nishadmenezes/pen,michalcarson/pen,viki-119/pen,Superordinate/pen,michalcarson/pen,hiBetterMe/pen,GerHobbelt/pen,viki-119/pen,npmcomponent/chemzqm-pen,GerHobbelt/pen,hiBetterMe/pen,nvoron23/pen,nvoron23/pen,fritx/pen,thomas-mcdonald/pen,Superordinate/pen,nishadmenezes/pen,bushuai/pen,teambition/pen,ppoo24/pen