Issue Description

Hi - in our csproj files use use custom properties for additional AssemblySearchPaths, see below where we added $(ReferencePath).

$(AssemblySearchPaths);$(ReferencePath);$(OutputPath);$(OutputPath)\Server

Now we start a build an pass in the ReferencePath:

dotnet.exe build test.sln --configuration Release /property:ReferencePath="C:\123;C:\456"

with NET6 - when doing an verbose build - we get this:

     SearchPaths:
         {CandidateAssemblyFiles}
         {HintPathFromItem}
         {TargetFrameworkDirectory}
         {RawFileName}
         C:\123
         C:\456

now with NET7 RC1 SDK - we get this:

     SearchPaths:
         {CandidateAssemblyFiles}
         {HintPathFromItem}
         {TargetFrameworkDirectory}
         {RawFileName}
         C:\123;C:\456

See the values are not split anymore - and the paths are not working? Any info about this behaviour?

thx