Execution Defects cannot be removed, after refreshing the execution details page

After refreshing the Execution Details page, the Execution Defects associated cannot be removed.

Steps to Reproduce

Step	Result
Go to the Execution page and create an Execution Defect
Refresh the page and click to remove the defect. The popup to remove the defect isn't displayed

It's possible to remove the Execution defects, after create it and without refreshing the Execution details page.

This bug occurs on Jira 8.0