[xwiki-users] Tag edit as minor change

Hi all, i made my own tag edit, which is based on ajax. Everything works perfect, but every change of tag will increment document version. (Like 1.1 to 2.1 and so on.) So how could I say to xwiki, that current edit is minor change not main? I thought about changing version by setting version as string. Something like this doc.setVersion("1.2"); but i am not quite sure if it is the proper way how to make this. Thanks.