DEV: prevents uppy to act on destroyed object (#14224)

app/assets/javascripts/discourse/app/mixins/composer-upload-uppy.js

@@ -147,6 +147,10 @@ export default Mixin.create({
     });
 
     this._uppyInstance.on("progress", (progress) => {
+      if (this.isDestroying || this.isDestroyed) {
+        return;
+      }
+
       this.set("uploadProgress", progress);
     });
 

app/assets/javascripts/discourse/app/mixins/upload.js

@@ -103,6 +103,10 @@ export default Mixin.create({
     });
 
     $upload.on("fileuploadprogressall", (e, data) => {
+      if (this.isDestroying || this.isDestroyed) {
+        return;
+      }
+
       const progress = parseInt((data.loaded / data.total) * 100, 10);
       this.set("uploadProgress", progress);
     });

app/assets/javascripts/discourse/app/mixins/uppy-upload.js

@@ -128,6 +128,10 @@ export default Mixin.create({
     this._uppyInstance.use(UppyChecksum, { capabilities: this.capabilities });
 
     this._uppyInstance.on("progress", (progress) => {
+      if (this.isDestroying || this.isDestroyed) {
+        return;
+      }
+
       this.set("uploadProgress", progress);
     });