Wrong content is shown for WordPress website after cloning: all images were replaced with one picture

Symptoms

• The WordPress instance example.com was cloned to subdomain.example.com.
• All images on the subdomain.example.com website were replaced with one picture.
• In the WordPress Admin Dashboard of subdomain.example.com domain, some pictures were replaced with the same image.
• The .htaccessfile can be found in Domains > subdomain.example.com > File Manager.

Cause

The .htaccessfile for subdomain.example.com domain, contains redirect rules to original website example.com. 

Resolution

1. Log into Plesk.
2. Go to Domains > subdomain.example.com > File Manager.
3. Open the .htaccess file.
4. Comment the lines with the redirect rules to example.com website:
   For example, from:
   

   CONFIG_TEXT: RewriteCond %{HTTP_HOST} ^.example.com\.com/wp-content/uploads/2014/05/example\.png [NC]
   RewriteRule ^(.*)$ http://example.com/wp-content/uploads/2014/10/example.png [L,R=301] 

   To

   CONFIG_TEXT: #RewriteCond %{HTTP_HOST} ^.example.com\.com/wp-content/uploads/2014/05/example\.png [NC]
   #RewriteRule ^(.*)$ http://example.com/wp-content/uploads/2014/10/example.png [L,R=301] 

5. Save the changes.