Ubuntu 版本：14.10 FileZilla 版本：3.9.0.6
当我尝试打开一个新标签时会发生这种情况。它覆盖当前选项卡。在这种情况下，选项卡也不可切换。
(prog-filezilla:13881): Gtk-CRITICAL **: IA__gtk_widget_set_size_request: assertion 'width >= -1' failed
(prog-filezilla:13881): Gtk-CRITICAL **: IA__gtk_widget_set_size_request: assertion 'height >= -1' failed
(prog-filezilla:13881): Gtk-CRITICAL **: IA__gtk_widget_set_size_request: assertion 'width >= -1' failed
(prog-filezilla:13881): Gtk-CRITICAL **: IA__gtk_widget_set_size_request: assertion 'width >= -1' failed
(prog-filezilla:13881): Gtk-CRITICAL **: IA__gtk_widget_set_size_request: assertion 'height >= -1' failed
(prog-filezilla:13881): Gtk-CRITICAL **: IA__gtk_widget_set_size_request: assertion 'width >= -1' failed
wxD-Bus: Signal from /org/freedesktop/DBus, member NameAcquired
wxD-Bus: Reply with serial 2
wxD-Bus: Reply to RegisterClient, our object path is /org/gnome/SessionManager/Client10
wxD-Bus: …