backport SL-2226

docs/docs/resources/changelog.md

@@ -16,6 +16,7 @@ During the alpha period, things might break! We take breaking changes very serio
 
 - Fixed a bug in `<wa-relative-time>` where the title attribute would show with redundant info
 - Added more resilient support for lazy loaded options in `<wa-select>`
+- Fixed a bug in `<wa-tooltip>` that caused a memory leak in disconnected elements
 
 ## 3.0.0-alpha.3
 

src/components/tooltip/tooltip.ts

@@ -129,6 +129,8 @@ export default class WaTooltip extends WebAwesomeElement {
   }
 
   disconnectedCallback() {
+    super.disconnectedCallback();
+
     // Cleanup this event in case the tooltip is removed while open
     this.closeWatcher?.destroy();
     document.removeEventListener('keydown', this.handleDocumentKeyDown);