Code macro does not expand if configured to be collapsible.

Summary

{code} macro does not expand if configured to be collapsable. It does not exhibit this behavior in the editor or in the preview from the editor, only after being published.

Environment

Cloud

Steps to Reproduce

1. create a page and add a code macro to it
2. edit the macro and check the "collapsable" Check-box and save
3. Publish the page
4. attempt to expand the macro by clicking Expand Source

Expected Results

The macro expands and shows the code.

Actual Results

The Expand is completely non-responsive. Error in Chrome console:

console.js:26 Error: can't load XRegExp twice in the same frame
    at com.atlassian.confluence.ext.newcode-macro-plugin:syntaxhighlighter.js?externals=__local-default__&…:5

Notes

N/a

Workaround

• Place Code block macro in its default configuration inside of an expand macro.