Fixing the redirect after saving the currency symbols

Author: eduard13

app/code/Magento/CurrencySymbol/Controller/Adminhtml/System/Currencysymbol/Save.php

@@ -67,6 +67,6 @@ public function execute()
             $this->messageManager->addErrorMessage($e->getMessage());
         }
 
-        return $resultRedirect->setPath('*');
+        return $resultRedirect->setPath('adminhtml/*/');
     }
 }

app/code/Magento/CurrencySymbol/Test/Unit/Controller/Adminhtml/System/Currencysymbol/SaveTest.php

@@ -132,7 +132,7 @@ public function testExecute()
             ->with(__('You applied the custom currency symbols.'));
 
         $redirect = $this->createMock(Redirect::class);
-        $redirect->expects($this->once())->method('setPath')->with('*')->willReturnSelf();
+        $redirect->expects($this->once())->method('setPath')->with('adminhtml/*/')->willReturnSelf();
         $this->resultRedirectFactory->method('create')->willReturn($redirect);
 
         $this->assertEquals($redirect, $this->action->execute());