Tab: fix bugs #677 (#678)
Tab: fix bugs #677 (#678)


greedying/vux,airyland/vux,szgxwj/vux,huixt/hxvux,airyland/vux,airyland/vux,huixt/hxvux,huixt/hxvux,szgxwj/vux,greedying/vux,greedying/vux,szgxwj/vux