Binary files that have a conflict between the source and destination branch are not shown in the diff, but do show in the pull request preview screen. The pull request cannot be merged because of a conflict, but there are no changes shown.

Steps to reproduce

1. Create a binary file and add it to the repository
2. Create two branches, branch_a and branch_b
3. On both branches modify the binary in a way that makes it different
4. Push both branches to Stash
5. Create a pull request from branch_b to branch_a
   1. The pull request diff preview will show that the binary file was changed and will be included
      
6. After the pull request has been created, the diff will not show any files but that the pull request cannot be merged because of a conflict
   

Expected Result

Stash will show the conflicted binary files in the pull request diff.