[BUG] Export-PnPPage doesn't create info about the client side page if certain section backgrounds are used.

Reporting an Issue or Missing Feature

If you use Export-PnPPage on a page that has a section background other than the first few very simple ones the exported xml file does not include a client side page object.

Expected behavior

When you run Export-PnPPage -Force -Identity $PageName -Out $migrationFileLocation -PersistBrandingFiles you should generate a file that includes all of the info to restore the page using Invoke-PnPSiteTemplate -Path $migrationFileLocation

Actual behavior

You get an xml file without the clientsidepage section

Steps to reproduce behavior

Export-PnPPage -Force -Identity $PageName -Out $migrationFileLocation -PersistBrandingFiles

What is the version of the Cmdlet module you are running?

3.1.0

Which operating system/environment are you running PnP PowerShell on?

• Windows
• Linux
• MacOS
• Azure Cloud Shell
• Azure Functions
• Other : please specify

Start by reproducing the issue with Export-PnPPage -Force -Identity $PageName -Out $migrationFileLocation -PersistBrandingFiles using a section background beyond the simplest options. Trace the Export-PnPPage path and compare the generated XML with the expected clientsidepage information; done means the exported file includes that section and can be restored with Invoke-PnPSiteTemplate.