serialization fix at parameter level

Author: FriedrichWeinmann

PSModuleDevelopment/bin/PSModuleDevelopment.dll

@@ -317,6 +317,7 @@
 			[OutputType([PSModuleDevelopment.Template.TemplateResult])]
 			[CmdletBinding()]
 			param (
+				[PSFramework.Utility.ScriptTransformation('PSModuleDevelopment.TemplateItem', [PSModuleDevelopment.Template.TemplateItemBase])]
 				[PSModuleDevelopment.Template.TemplateItemBase]
 				$Item,
 

PSModuleDevelopment/bin/PSModuleDevelopment.pdb

@@ -10,4 +10,10 @@ if (-not (Test-Path (Get-PSFConfigValue -FullName 'PSModuleDevelopment.Debug.Con
 #endregion Ensure Config path exists
 
 # Pass on the host UI to the library
-[PSModuleDevelopment.Utility.UtilityHost]::RawUI = $host.UI.RawUI
+[PSModuleDevelopment.Utility.UtilityHost]::RawUI = $host.UI.RawUI
+
+# Register Type-Conversion to fix template issues in serialization edge-casaes
+Register-PSFArgumentTransformationScriptblock -Name 'PSModuleDevelopment.TemplateItem' -Scriptblock {
+	if ($_ -is [PSModuleDevelopment.Template.TemplateItemBase]) { return $_ }
+	[PSModuleDevelopment.Template.TemplateHost]::GetTemplateItem($_)
+}

PSModuleDevelopment/functions/templating/Invoke-PSMDTemplate.ps1

@@ -12,7 +12,7 @@ namespace PSModuleDevelopment.Template
     /// <summary>
     /// Static helpers for the template system
     /// </summary>
-    internal static class TemplateHost
+    public static class TemplateHost
     {
         internal static TemplateItemBase GetTemplateItem(object Item)
         {