Can not get LimitedWebPartManager from Page
Expected behavior
I will get the SPLimitedWebPartManager from a specific page to manage webpart connection.
Actual behavior
$file = Get-PnPFile -ServerRelativeUrl $pageRelativeUrl $file.GetLimitedWebPartManager([System.Web.UI.WebControls.WebParts.PersonalizationScope]::Shared)
error: format-default : The collection has not been initialized. It has not been requested or the request has not been executed. It may need to be explicitly requested.

Steps to reproduce behavior
$file = Get-PnPFile -ServerRelativeUrl "/Wiki/Test.aspx" $file.GetLimitedWebPartManager([System.Web.UI.WebControls.WebParts.PersonalizationScope]::Shared)
Which version of the PnP-PowerShell Cmdlets are you using?
- [ ] PnP PowerShell for SharePoint 2013
- [ ] PnP PowerShell for SharePoint 2016
- [x ] PnP PowerShell for SharePoint 2019
- [ ] PnP PowerShell for SharePoint Online
What is the version of the Cmdlet module you are running?
3.14.1910.1
How did you install the PnP-PowerShell Cmdlets?
- [ ] MSI Installed downloaded from GitHub
- [x ] Installed through the PowerShell Gallery with Install-Module
- [ ] Other means
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I have the same behaviour with SPOnline.