rector-prefixed adds _HumbugBox prefix to FullyQualified

[alfredbez]

Bug Report

Subject	Details
Rector version	v0.7.2
Installed as	prefixed Rector PHAR

In #2883 we added a rector to replace some deprecated classes with a namespaced one. It works if I install rector directly, but it adds the HumbugBox-prefix to the namespace when I use the prefixed-version of rector.

Minimal PHP Code Causing Issue

Since the set is not available on https://getrector.org/demo/ yet, I added a small repo, to reproduce the issue, check this out: https://github.com/alfredbez/rector-issue
After running composer install you can run the set like:

vendor/bin/rector process src --set oxid60 --dry-run

Actual Output

or as text:

$ vendor/bin/rector process src --set oxid60 --dry-run
Rector v0.7.2

 3/3 [▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓] 100%

1 file with changes
===================

1) src/Core/Foo.php

    ---------- begin diff ----------
--- Original
+++ New
@@ -6,6 +6,6 @@
 {
     public function makeSomethingWithCategories()
     {
-        $category = oxNew('oxcategory');
+        $category = oxNew(\_HumbugBoxaf3b4563b2b8\OxidEsales\Eshop\Application\Model\Category::class);
     }
 }
    ----------- end diff -----------

Applied rules:

 * Rector\Oxid\Rector\FuncCall\OxidReplaceBackwardsCompatabilityClassRector


                                                                                                                        
 [OK] Rector is done! 1 file would have changed (dry-run).                                                              
                                                                                                                        

Expected Behaviour

I didn't expect to see the prefix \_HumbugBoxaf3b4563b2b8 in front of \OxidEsales\Eshop\Application\Model\Category.

---

I'm not sure if this is related only to this Rector.

[alfredbez]

Wow, that was super fast, thanks a lot!