fixed issue wit migrations and m2mplaceholderfield
fixed issue wit migrations and m2mplaceholderfield

divio/cmsplugin-blog,wlanslovenija/cmsplugin-blog,divio/cmsplugin-blog,divio/cmsplugin-blog,wlanslovenija/cmsplugin-blog,wlanslovenija/cmsplugin-blog,wlanslovenija/cmsplugin-blog