bug symfony#59796 [Mime] use address for body at PathHeader (tinect)

This PR was merged into the 6.4 branch.

Discussion
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[Mime] use address for body at `PathHeader`

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | Fix #... <!-- prefix each issue number with "Fix #", no need to create an issue if none exists, explain below instead -->
| License       | MIT

We noticed, that ReturnPath has wrong content in EML if any library is forcing key=>value.
Setting it to `[email protected]`, results into `<"[email protected]" <[email protected]>>` after stringify it which is not compliant: `Email \"\"[email protected]"<[email protected]\" does not comply with addr-spec of RFC 2822.`

Commits
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0d4a498 [MIME] use address for body at PathHeader

Author: nicolas-grekas

src/Symfony/Component/Mime/Header/PathHeader.php

@@ -57,6 +57,6 @@ public function getAddress(): Address
 
     public function getBodyAsString(): string
     {
-        return '<'.$this->address->toString().'>';
+        return '<'.$this->address->getEncodedAddress().'>';
     }
 }

src/Symfony/Component/Mime/Tests/Header/HeadersTest.php

@@ -346,4 +346,12 @@ public function testSetHeaderParameterNotParameterized()
         $this->expectException(\LogicException::class);
         $headers->setHeaderParameter('Content-Disposition', 'name', 'foo');
     }
+
+    public function testPathHeaderHasNoName()
+    {
+        $headers = new Headers();
+
+        $headers->addPathHeader('Return-Path', new Address('some@path', 'any ignored name'));
+        $this->assertSame('<some@path>', $headers->get('Return-Path')->getBodyAsString());
+    }
 }