BUGFIX: adjust existence check for AssetUploadScreen

Author: andrehoffmann30

packages/neos-ui-editors/src/Editors/Image/index.js

@@ -216,11 +216,10 @@ export default class ImageEditor extends Component {
 
     handleChooseFile = () => {
         const {secondaryEditorsRegistry, options} = this.props;
-        const {component: AssetUploadScreen} = secondaryEditorsRegistry.get('Neos.Neos/Inspector/Secondary/Editors/AssetUploadScreen');
-
-        if (AssetUploadScreen) {
+        if (secondaryEditorsRegistry.get('Neos.Neos/Inspector/Secondary/Editors/AssetUploadScreen')) {
             // set media type constraint to "image/*" if it is not explicitly specified via options.constraints.mediaTypes
             const constraints = {...options.constraints, mediaTypes: (options.constraints && options.constraints.mediaTypes) || ['image/*']};
+            const {component: AssetUploadScreen} = secondaryEditorsRegistry.get('Neos.Neos/Inspector/Secondary/Editors/AssetUploadScreen');
             this.props.renderSecondaryInspector('IMAGE_UPLOAD_MEDIA', () => <AssetUploadScreen type="images" constraints={constraints} onComplete={this.afterUpload}/>);
         } else {
             this.previewScreen.chooseFromLocalFileSystem();