Merge pull request #242986 in DEC/fineui from master to feature/x

* commit '226babde84a3d7b8ed221e4d314653fda67df408':
  无JIRA fix: this指向问题

packages/fineui/src/base/single/input/file.js

@@ -541,7 +541,7 @@ export class File extends Widget {
                 // We can still show some information
             }
             this.fireEvent(File.EVENT_PROGRESS, {
-                file: this.file,
+                file: _wrap.file,
                 total: rpe.total,
                 loaded: rpe.loaded,
                 simulation: rpe.simulation,