skip transition when element is hidden (fix #1322)
skip transition when element is hidden (fix #1322)

th0r/vue,fergaldoyle/vue,fergaldoyle/vue,diermengdierme/vue,shupan123/vue-fixed-type,karevn/vue,th0r/vue,diermengdierme/vue,fergaldoyle/vue,Endika/vue,lepture/vue,Endika/vue,galenyuan/vue,galenyuan/vue,galenyuan/vue,karevn/vue,lepture/vue,Endika/vue,seedalpha/vue,th0r/vue,shupan123/vue-fixed-type,karevn/vue,seedalpha/vue,seedalpha/vue,diermengdierme/vue,shupan123/vue-fixed-type,lepture/vue