First row from the Page Properties Report Macro freezes if the Page Properties Report Macro is inside an Expand Macro

Steps to replicate the issue

1. Create a few pages in Confluence with Page Properties Macro
2. Create another page and insert a Page Properties Report Macro based on the label from the page containing the Page Properties Macro inside an Expand Macro

Expected Behaviour

The Page Properties Report Macro behave correctly inside the Expand Macro.

Actual Behaviour

The first row of the Page Properties Report Macro is freezes with the following behaviour:

• Has a grey background.
  This is not visible in Confluence version 6.15.1
• Is ignored when the table is sorted in read mode.
• Cannot be highlighted to place a inline comment or create a JIRA-Ticket
• Is ignored when the number of items to display is higher than set in the macro and the pagination options appear.