[ios] Fixed duplicate migration controller open on fast scroll.
[ios] Fixed duplicate migration controller open on fast scroll.

darina/omim,mpimenov/omim,darina/omim,goblinr/omim,mpimenov/omim,dobriy-eeh/omim,Transtech/omim,bykoianko/omim,ygorshenin/omim,stangls/omim,65apps/omim,syershov/omim,alexzatsepin/omim,rokuz/omim,Transtech/omim,mgsergio/omim,mgsergio/omim,mgsergio/omim,milchakov/omim,darina/omim,ygorshenin/omim,yunikkk/omim,ygorshenin/omim,Zverik/omim,Zverik/omim,milchakov/omim,stangls/omim,Transtech/omim,VladiMihaylenko/omim,rokuz/omim,bykoianko/omim,matsprea/omim,trashkalmar/omim,mapsme/omim,bykoianko/omim,65apps/omim,VladiMihaylenko/omim,gardster/omim,milchakov/omim,mgsergio/omim,darina/omim,trashkalmar/omim,mapsme/omim,yunikkk/omim,ygorshenin/omim,mgsergio/omim,Zverik/omim,goblinr/omim,65apps/omim,mapsme/omim,Zverik/omim,mapsme/omim,syershov/omim,trashkalmar/omim,trashkalmar/omim,dobriy-eeh/omim,rokuz/omim,gardster/omim,Transtech/omim,matsprea/omim,stangls/omim,65apps/omim,VladiMihaylenko/omim,Transtech/omim,mpimenov/omim,goblinr/omim,trashkalmar/omim,trashkalmar/omim,syershov/omim,goblinr/omim,simon247/omim,milchakov/omim,milchakov/omim,matsprea/omim,dobriy-eeh/omim,ygorshenin/omim,Transtech/omim,goblinr/omim,yunikkk/omim,Zverik/omim,syershov/omim,dobriy-eeh/omim,simon247/omim,goblinr/omim,alexzatsepin/omim,VladiMihaylenko/omim,stangls/omim,stangls/omim,trashkalmar/omim,mpimenov/omim,bykoianko/omim,syershov/omim,ygorshenin/omim,Transtech/omim,mapsme/omim,trashkalmar/omim,simon247/omim,Transtech/omim,milchakov/omim,trashkalmar/omim,matsprea/omim,mgsergio/omim,Transtech/omim,rokuz/omim,syershov/omim,Transtech/omim,mgsergio/omim,alexzatsepin/omim,goblinr/omim,gardster/omim,Zverik/omim,mgsergio/omim,Transtech/omim,Zverik/omim,alexzatsepin/omim,65apps/omim,mpimenov/omim,goblinr/omim,simon247/omim,mgsergio/omim,matsprea/omim,alexzatsepin/omim,yunikkk/omim,stangls/omim,syershov/omim,stangls/omim,dobriy-eeh/omim,goblinr/omim,milchakov/omim,rokuz/omim,gardster/omim,gardster/omim,matsprea/omim,dobriy-eeh/omim,syershov/omim,VladiMihaylenko/omim,dobriy-eeh/omim,darina/omim,mpimenov/omim,dobriy-eeh/omim,mpimenov/omim,Zverik/omim,matsprea/omim,VladiMihaylenko/omim,rokuz/omim,gardster/omim,VladiMihaylenko/omim,mpimenov/omim,ygorshenin/omim,bykoianko/omim,stangls/omim,yunikkk/omim,matsprea/omim,trashkalmar/omim,ygorshenin/omim,simon247/omim,65apps/omim,mapsme/omim,Transtech/omim,ygorshenin/omim,alexzatsepin/omim,alexzatsepin/omim,mapsme/omim,stangls/omim,mpimenov/omim,syershov/omim,darina/omim,gardster/omim,mapsme/omim,simon247/omim,darina/omim,goblinr/omim,bykoianko/omim,trashkalmar/omim,bykoianko/omim,milchakov/omim,yunikkk/omim,goblinr/omim,65apps/omim,simon247/omim,gardster/omim,mapsme/omim,dobriy-eeh/omim,syershov/omim,alexzatsepin/omim,goblinr/omim,trashkalmar/omim,rokuz/omim,mapsme/omim,gardster/omim,mgsergio/omim,gardster/omim,65apps/omim,alexzatsepin/omim,milchakov/omim,darina/omim,milchakov/omim,simon247/omim,Zverik/omim,yunikkk/omim,Zverik/omim,darina/omim,ygorshenin/omim,mpimenov/omim,bykoianko/omim,matsprea/omim,bykoianko/omim,VladiMihaylenko/omim,dobriy-eeh/omim,Zverik/omim,mgsergio/omim,alexzatsepin/omim,yunikkk/omim,Zverik/omim,goblinr/omim,matsprea/omim,rokuz/omim,VladiMihaylenko/omim,rokuz/omim,darina/omim,mpimenov/omim,darina/omim,dobriy-eeh/omim,alexzatsepin/omim,yunikkk/omim,bykoianko/omim,darina/omim,simon247/omim,mpimenov/omim,rokuz/omim,65apps/omim,VladiMihaylenko/omim,yunikkk/omim,ygorshenin/omim,bykoianko/omim,mapsme/omim,mgsergio/omim,stangls/omim,65apps/omim,rokuz/omim,syershov/omim,dobriy-eeh/omim,rokuz/omim,bykoianko/omim,simon247/omim,bykoianko/omim,alexzatsepin/omim,VladiMihaylenko/omim,stangls/omim,rokuz/omim,mapsme/omim,ygorshenin/omim,milchakov/omim,mpimenov/omim,VladiMihaylenko/omim,mapsme/omim,65apps/omim,syershov/omim,syershov/omim,darina/omim,dobriy-eeh/omim,milchakov/omim,milchakov/omim,alexzatsepin/omim,yunikkk/omim,Zverik/omim,VladiMihaylenko/omim