Rest API 2.0 : Remove Patch request for Epic links doesn't work as expected

Issue Summary

Doing a Patch request to the rest/align/api/2/Epics/EpicId endpoint with a remove operation, while there is only one item in the array of links, returns a 204 success result but the link is not removed.

Steps to Reproduce

1. Make a PATCH request to rest/align/api/2/Epics/EpicId endpoint with the following body; to create a link:

   [
     {
       "op": "add",
       "path": "/links/0",
       "value": {
          "id": 57,
          "name": "linkymclinkface",
          "link": "somelink.com"
       }
     }
   ] 

   Returns 204 and the link is created in the array in the position 0.

2. Make a PATCH request to rest/align/api/2/Epics/EpicId endpoint with the following body; to remove the previously created link:

   [
       {
           "op": "remove",
           "path": "/links/0"
       }
   ] 

Expected Results

The remove operation deletes the link in the position 0 even when it is the last item in the array of links

Actual Results

The link is not removed although we get a status 204 success

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available.