Steps to Reproduce:

• Create a page in Confluence
• Add a JIRA macro to the page with some issues in it
• Add a Change History Macro to the page

Expected Results:

JIRA issue macro should keep the same look and there should be not changes to it just like the screen shot below:

Actual Results:

Following is added to the page:

 .aui td     { white-space:nowrap; }

And because of this, there will be a scrollbar under the JIRA macro and you can't see everything without having to scroll.

Workaround:

Adding the following to Confluence Admin > Stylesheet, will help with the view:

.aui td {
white-space: normal !important;
}