Fix cache bug

src/extension.js

@@ -155,6 +155,7 @@ export default class DashToPanelExtension extends Extension {
 
     PanelSettings.disable(SETTINGS)
     panelManager.disable()
+    PanelSettings.clearCache()
 
     DTP_EXTENSION = null
     SETTINGS = null

src/panelSettings.js

@@ -46,6 +46,7 @@ export var availableMonitors = []
 
 export async function init(settings) {
   useCache = true
+  cache = {}
   prefsOpenedId = settings.connect(
     'changed::prefs-opened',
     () => (useCache = !settings.get_boolean('prefs-opened')),