Issue Summary

Legacy JIRA macro is not working in templates when we select single issue in display options.

Steps to Reproduce

1. Step 1 Create a template, insert JIRA legacy macro
2. Step 2 Select single issue in display options
   
3. Step 3 Create a page using this template
4. Step 4 Try editing the macro(insert new issue key) and click on insert you will notice changes are not saved, it still shows old issue key
   

Still showing old issue key

Expected Results

Changes should be saved.

Actual Results

Changes are not getting saved.

Workaround

Change the display option from single to table.