Disable tests for #623 only for netcore
Disable tests for #623 only for netcore

rainersigwald/msbuild,chipitsine/msbuild,jeffkl/msbuild,AndyGerlicher/msbuild,AndyGerlicher/msbuild,cdmihai/msbuild,chipitsine/msbuild,jeffkl/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,sean-gilliam/msbuild,Microsoft/msbuild,Microsoft/msbuild,AndyGerlicher/msbuild,rainersigwald/msbuild,jeffkl/msbuild,cdmihai/msbuild,Microsoft/msbuild,chipitsine/msbuild,mono/msbuild,mono/msbuild,Microsoft/msbuild,cdmihai/msbuild,mono/msbuild,cdmihai/msbuild,chipitsine/msbuild,sean-gilliam/msbuild,jeffkl/msbuild,sean-gilliam/msbuild,mono/msbuild,rainersigwald/msbuild,rainersigwald/msbuild