Not possible to import JSON file to existing project

Summary

It is not possible to import JSON file to existing project

Steps to Reproduce

1. Create a JSON file for example:

   • {
         "projects": [
             {
                 "name": "ITF project",
                 "key": "ITF",
                 "issues": [
                     {
                         "key" : "ITF-5555",
                         "status" : "Open",
                         "reporter" : "admin",
                         "summary" : "Someting in summary"
                     }
                 ]
             }
         ]
     }
     

2. Try to import JSON file by selecting existing project

Expected Results

Issues are created

Actual Results

Issues are not created. An example error message is shown:

External issue null already exists as ITF-1, not importing.

Workaround

1. Import the file by selecting a new project
2. Move the issues to the existing project.