Description

There seem to be a bit of a history of this (#3154, #3186, #3352).

In my scenario, I'm using the new .NET SDK project format to build a .NET Framework 4.6 assembly.

paket.dependencies:

version 5.216.0 --force-nuget -v

group CsProjCop
	source https://api.nuget.org/v3/index.json
	framework: net46, net472
	storage: none

	nuget Microsoft.Build.Locator
	nuget YamlDotNet

group MSBuild
	source https://api.nuget.org/v3/index.json 
	framework: net46, net472
	storage: none
	lowest_matching: true
	strategy: min
	
	copy_local: false
	copy_content_to_output_dir: never
	
	nuget Microsoft.Build >= 15.0
	nuget Microsoft.Build.Framework >= 15.0
	nuget Microsoft.Build.Utilities.Core >= 15.0

paket.references:

group CsProjCop
	Microsoft.Build.Locator
	YamlDotNet

group MSBuild
	Microsoft.Build copy_local: false
	Microsoft.Build.Framework copy_local: false
	Microsoft.Build.Utilities.Core copy_local: false

Repro steps

1. Clone https://github.com/yaakov-h/paket-copy-local-repro
2. Run build.cmd

Expected behavior

1. The build succeeds
2. bin\net46 DOES NOT contain:
   • Microsoft.Build.dll
   • Microsoft.Build.Framework.dll
   • Microsoft.Build.Utilities.Core.dll

Actual behavior

1. The build fails due to an error from Microsoft.Build.Locator's targets file, warning that Microsoft.Build.* is being copied to the output directory.
2. bin\net46 DOES contain:
   • Microsoft.Build.dll
   • Microsoft.Build.Framework.dll
   • Microsoft.Build.Utilities.Core.dll