Issue Summary

When trying to past an image to an issue from the issue navigator an error message is displayed.
The issue no longer exists.

Steps to Reproduce

1. Copy an image from an external application, such as Mac Preview;
2. Open a filter and select one issue;
3. Try to paste the image in the issue

The video reproducing the behavior: Screen Recording 2020-01-27 at 04.40 PM.mov

Expected Results

The attachment is pasted and no error message displayed.

Actual Results

The attachment is pasted and an error is displayed.

Workaround

Open the issue in a new tab and then paste the image.