fix(ui): after canceling a filter, layer loses its content

Author: psychedelicious

invokeai/frontend/web/src/features/controlLayers/konva/CanvasEntity/CanvasEntityFilterer.ts

@@ -424,9 +424,15 @@ export class CanvasEntityFilterer extends CanvasModuleBase {
     // the user has applied the filter and the image has been adopted by the parent entity.
     if (this.imageModule && this.imageModule.konva.group.parent === this.konva.group) {
       this.imageModule.destroy();
-      this.imageModule = null;
     }
+
+    // When a filter is applied, the image module is adopted by the parent entity as a "permanent" module.
+    // Null this reference to prevent the filter module from accidentally trying to destroy a module that the
+    // parent entity is now responsible for.
+    this.imageModule = null;
+
     const initialFilterConfig = deepClone(this.$initialFilterConfig.get() ?? this.createInitialFilterConfig());
+
     this.$filterConfig.set(initialFilterConfig);
     this.$imageState.set(null);
     this.$lastProcessedHash.set('');