prefer-export-from: Fix bug on fixing export namespace as default

rules/prefer-export-from.js

@@ -230,7 +230,7 @@ function * getProblems({
 		```
 		*/
 		if (imported.name === '*' && exported.name === 'default') {
-			return;
+			continue;
 		}
 
 		yield {

test/prefer-export-from.mjs

@@ -264,20 +264,11 @@ test.snapshot({
 			export {named} from './foo.js?query';
 			export default defaultExport;
 		`,
-	],
-});
-
-// Strange case
-// TODO: confirm how should this work
-test.snapshot({
-	valid: [
 		outdent`
 			import * as namespace from 'foo';
 			export default namespace;
 			export {namespace};
 		`,
-	],
-	invalid: [
 		outdent`
 			import * as namespace from 'foo';
 			export {namespace};

test/snapshots/prefer-export-from.mjs.md

@@ -440,11 +440,12 @@ Generated by [AVA](https://avajs.dev).
       2 | namespace.bar = 1;␊
       3 |␊
       4 | export {namespace as default};␊
-      5 | export const variable = namespace;␊
+      5 |␊
       6 | export * as named from 'foo';␊
+      7 | export * as variable from 'foo';␊
     `
 
-> Error 1/1
+> Error 1/2
 
     `␊
       1 | import * as namespace from 'foo';␊
@@ -455,6 +456,17 @@ Generated by [AVA](https://avajs.dev).
       5 | export const variable = namespace;␊
     `
 
+> Error 2/2
+
+    `␊
+      1 | import * as namespace from 'foo';␊
+      2 | namespace.bar = 1;␊
+      3 | export {namespace as named};␊
+      4 | export {namespace as default};␊
+    > 5 | export const variable = namespace;␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use \`export…from\` to re-export \`variable\`.␊
+    `
+
 ## Invalid #20
       1 | import {named1, named2} from 'foo';
       2 | export {named1};
@@ -1024,7 +1036,30 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use \`export…from\` to re-export \`default\`.␊
     `
 
-## Invalid #1
+## Invalid #43
+      1 | import * as namespace from 'foo';
+      2 | export default namespace;
+      3 | export {namespace};
+
+> Output
+
+    `␊
+      1 | import * as namespace from 'foo';␊
+      2 | export default namespace;␊
+      3 |␊
+      4 | export * as namespace from 'foo';␊
+    `
+
+> Error 1/1
+
+    `␊
+      1 | import * as namespace from 'foo';␊
+      2 | export default namespace;␊
+    > 3 | export {namespace};␊
+        |         ^^^^^^^^^ Use \`export…from\` to re-export \`namespace\`.␊
+    `
+
+## Invalid #44
       1 | import * as namespace from 'foo';
       2 | export {namespace};
       3 | export default namespace;