resetting the button status and lists immediately after command running

src/window.py

@@ -121,6 +121,9 @@ class EepmPlayGuiWindow(Adw.ApplicationWindow):
             self.applications = applications
 
     def update_ui(self):
+        self.installed_apps = None
+        self.applications = None
+
         self.show_loading_spinner()  # Show loading again for installed apps
 
         self.update_button_status()
@@ -128,8 +131,6 @@ class EepmPlayGuiWindow(Adw.ApplicationWindow):
         ApplicationManager.get_available_applications(self.on_applications_loaded)
         ApplicationManager.get_installed_applications(self.on_installed_apps_loaded)
 
-        self.choice_listbox.invalidate_filter()
-
     def on_installed_apps_loaded(self, installed_apps, error=None):
         if error:
             print(f"Error: {error}")
@@ -140,6 +141,8 @@ class EepmPlayGuiWindow(Adw.ApplicationWindow):
             self.checkboxes = {}
             for app in self.applications:
                 self.add_application_row(app)
+
+            self.choice_listbox.invalidate_filter()
             self.hide_loading_spinner()
 
     def clear_choice_listbox(self):
@@ -213,6 +216,8 @@ class EepmPlayGuiWindow(Adw.ApplicationWindow):
             return matches_search  # All
 
     def on_apply_clicked(self, button):
+        commands = None
+
         self.show_loading_spinner()  # Показать сообщение о загрузке перед выполнением команды
         to_install, to_remove = self.get_install_remove_lists()
         commands = self.build_commands(to_install, to_remove)
@@ -225,7 +230,7 @@ class EepmPlayGuiWindow(Adw.ApplicationWindow):
             self.dialog.run("pkexec epm play --update all", on_done=self.update_ui)
 
     def get_install_remove_lists(self):
-        if self.checkboxes:
+        if self.installed_apps and self.checkboxes:
             to_install = [app_name for app_name, row in self.checkboxes.items() if row.checkbox.get_active() and app_name not in self.installed_apps]
             to_remove = [app_name for app_name, row in self.checkboxes.items() if not row.checkbox.get_active() and app_name in self.installed_apps]
             return to_install, to_remove