Even after selecting Reset or Merge option, Pop up is not disappearing and it is not allowing anything on the screen

Description

While executing a Test, on the Test execution page Reset and Merge button pop-up is appearing. It doesn't matter which option that we choose whether Merge or Reset it's not going anywhere.

How to reproduce

1. Go to any Test and apply at least 2-3 Pre-conditions (the test must be assigned with the Test execution),
2. Go to Test execution and press the Merge → Yes Button, and verify that Pre-Conditions appeared.
3. Then return to the Test and switch places in Pre-Conditions ( Drag 2nd Pre-condition to 1st place),
4. Go back to the Test execution and press the Merge → Yes button,
5. Then it should start repeating Reset and Merge the same buttons without affecting anything.
6. If we perform the integrity checker the pop-up is disappearing, but it is considering these Precondition links as invalid links, and it removed the links between Test and Precondition.

Actual result : 

Even after selecting Reset or Merge options, Pop up is not disappearing and it is not allowing anything on the screen.

Expected result: It should merge or needs to reset the Test details and the pop-up should disappear after selecting any of the options. 

Version

• Jira Version:8.20.13
  App Version:7.0.1
• Jira Version :9.9.0