[release/11.0-preview4] Source code updates from dotnet/dotnet#11615

dotnet-maestro[bot] wants to merge 2 commits intorelease/11.0-preview4dotnet/wpf:release/11.0-preview4from

darc-release/11.0-preview4-aab670d6-1387-4ab8-92db-a50100bf19e3dotnet/wpf:darc-release/11.0-preview4-aab670d6-1387-4ab8-92db-a50100bf19e3Copy head branch name to clipboard