ACP2E-1451: Non-default configurations added as env variables break config import

Author: viktym

dev/tests/integration/testsuite/Magento/Config/App/Config/Type/SystemTest.php

@@ -47,4 +47,25 @@ public function testGetValueDefaultScope()
             $this->system->get('stores/default/web/test/test_value_1')
         );
     }
+
+    /**
+     * Tests that configurations added as env variables don't cause the error 'Recursion detected'
+     * after cleaning the cache.
+     *
+     * @return void
+     */
+    public function testEnvGetValueStoreScope()
+    {
+        $this->system->clean();
+        $_ENV['CONFIG__STORES__DEFAULT__ABC__QRS__XYZ'] = 'test_env_value';
+
+        $this->assertEquals(
+            'value1.db.default.test',
+            $this->system->get('default/web/test/test_value_1')
+        );
+        $this->assertEquals(
+            'test_env_value',
+            $this->system->get('stores/default/abc/qrs/xyz')
+        );
+    }
 }