Jira Integration - Automatically Adds Text To MR That Closes the Jira Issue

When the GitLab Jira Integration is activated for a project, the MR created from a branch containing the Jira issue ID in the branch name, has Closes <Jira Issue ID> text automatically added to the MR description. The Jira issue is then automatically closed when the MR is merged.

Can this be feature be turned off?

Also, is there any documentation for this? This behavior was unexpected.

In our workflows, just because the Jira Issue ID is part of the branch name doesn't mean merging the branch resolves the associated Jira issue. This is unexpected behavior and burdensome for our users to have to remember to manually delete the text from the MR description before merging the MR. As a result we are unable to use the transition feature.

We're currently using GitLab 12.8.8-ee.