**Steps to reproduce**
* Create a new Mock (M1469)
* Upload an image to the Mock
* Upload an image to the description field
* Save the Mock
**Expected behavior**
* The 2 files are attached to the mock so permissions are inherited from the Mock to the files.
**Current behavior**
* The file uploaded in the mock is attached to the mock and accessible by everyone who has access to the mock (F1812095)
* The file uploaded in the description field has no realtion to the Mock and is only visible for the user who uploaded the file. (F1812094)