Weird behavior with the code block

[jeffreytse]

For some reason, the sample below produces a wrong result.

---
layout: post
title: testtttt
subtitle: just a test.
categories: test
tags: [test, bug, weird, help]
---
``` diff
+        'user_exists' => 'SELECT EXISTS(SELECT 1 FROM table WHERE username = (:username || \'@sample'))',
+        'get_users' => 'SELECT split_part(username, \'@\', 1) FROM table WHERE (username ILIKE :search) OR (name ILIKE :search)',
+        'get_password_hash_for_user' => 'SELECT split_part(password, \'{CRYPT}\', 2) FROM table WHERE username = (:username || \'@sample\')',
+        'set_password_hash_for_user' => 'UPDATE table SET password =  \'{CRYPT}\' || :new_password_hash WHERE username = (:username || \'@sample\')',
``` 
Reload the Nginx:

``` console
$ sudo nginx -s reload
```

#### Sample title three

Sample test wit a [sample link](https://google.com).

The \<password\> will be in the file `samplefile.tips` in the `sample:` section.

| **Sample table**               | **Sample table**    |
| ---------------------------------- | -------------------------------------- |
| Email user: joanadarc@sample.com | Email user: joanadarc@sample.com     |
| Nextcloud user: joanadarc          | Nextcloud user: joanadarc@sample.com |

The code block was corrupted as below image: