Fix unresolved P2P references losing Configuration in solution builds

documentation/wiki/ChangeWaves.md

@@ -41,6 +41,7 @@ Change wave checks around features will be removed in the release that accompani
 - [TaskHostTask forwards request-level global properties (e.g. MSBuildRestoreSessionId) to out-of-proc TaskHost in -mt mode](https://github.com/dotnet/msbuild/pull/13443)
 - [Fix ShouldTreatWarningAsError in OOP TaskHost checking wrong collection (WarningsAsMessages instead of WarningsAsErrors)](https://github.com/dotnet/msbuild/issues/11952)
 - [Fix ToolTask hang when tool spawns grandchild processes that inherit stdout/stderr pipe handles](https://github.com/dotnet/msbuild/issues/2981)
+- [Unresolved project references in solution builds inherit parent Configuration and Platform instead of stripping them via GlobalPropertiesToRemove](https://github.com/dotnet/msbuild/issues/13453)
 
 ### 18.5
 - [FindUnderPath and AssignTargetPath tasks no longer throw on invalid path characters when using TaskEnvironment.GetAbsolutePath](https://github.com/dotnet/msbuild/pull/13069)