template containing variable with jira or jiraissues macro adds ", JIRA Issues" to page title

Steps to Repro:

1. Create a template with the following wiki markup:

   @dynamic@
   
   {jira:@dynamic@}
   

2. Save the template.
3. Add a new page and give it some title.
4. Click "Create page from template".
5. Select the template you created.
6. Insert the variable of a JIRA issue key from a JIRA instance that is hooked up to Confluence via App Links.

Expected:
The page template content is added to the page. The page title is unchanged.

Actual:
The page template content is added to the page. The page title has ", JIRA Issues" added to the end of whatever was previously entered.