The uploaded documentations file is removed by clicking on Cancel button

[marla-singer]

Steps for reproduce

1. Create an API
2. Upload a documentation specification via File
3. Click on the button "Save"
4. Open the manage Module
5. Click on the button "Cancel"

Expected result

• Manage Module is closed
• The uploaded file isn't removed

Actual result

• Manage Module is closed
• The uploaded file is removed