Better fix for closing non-active tab

kitty/boss.py

@@ -551,6 +551,10 @@ def confirm_tab_close(self, tab: Tab) -> None:
         if not needs_confirmation:
             self.close_tab_no_confirm(tab)
             return
+        if tab is not self.active_tab:
+            tm = tab.tab_manager_ref()
+            if tm is not None:
+                tm.set_active_tab(tab)
         self._run_kitten('ask', ['--type=yesno', '--message', _(
             'Are you sure you want to close this tab, it has {}'
             ' windows running?').format(num)],

kitty/tabs.py

@@ -999,7 +999,6 @@ def handle_click_on_tab(self, x: int, button: int, modifiers: int, action: int)
                     self.set_active_tab_idx(i)
                 elif button == GLFW_MOUSE_BUTTON_MIDDLE:
                     tab = self.tabs[i]
-                    self.set_active_tab(tab)
                     get_boss().close_tab(tab)
         self.recent_mouse_events.append(TabMouseEvent(button, modifiers, action, now, i))
         if len(self.recent_mouse_events) > 5: