(REST) Add label does not link Jira issue key

Issue

Adding label to build result from REST API (/plan/{projectKey}-{buildKey}/label) does not have the same result as when adding it from Bamboo's UI.

Documentation

Extracted from Linking Jira application issues to a build:

Bamboo will automatically link an issue to a build if you specify a Jira issue key in a Bamboo build comment or label, or in a code commit message.

The issue key must be of the default Jira issue key format (that is, two or more uppercase letters ([A-Z][A-Z]+), followed by a hyphen and the issue number, for example BAM-123).

How to Replicate

By having Atlassian Bamboo and Atlassian Jira connected through Application Link:

• create an issue in Jira, e.g LABEL-1
• run a build in Bamboo, resulting on PROJ-PLAN-JOB1-1
• run the following cURL command to add a label:

  curl -k -u admin:admin \
       -H "Content-type: application/json" \
       -H "Accept: application/json" \
       -d '{"name":"LABEL-1"}' \
       -X POST http://localhost:8085/rest/api/latest/result/PROJ-PLAN-1/label
  

Expected Result

Label should be added and linked to existent Jira issue key.

Actual Result

Bamboo seems not to communicate with Jira as the remote-link-aggregation is not called.

Workaround

Use the comment API to add a comment to the build result instead of a label. Comments are correctly processed and will link the Jira issue:

curl --user admin -H 'Content-Type: application/xml' -X POST 'http://bamboo-url/rest/api/latest/result/{PROJ}-{PLAN}-{RESULT}/comment' --data '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<comment>
    <content>JRA-100</content>
</comment>'