fixed issues with Socket.Run()

Author: isc-hwojnick

cls/_zpkg/isc/sc/git/Socket.cls

@@ -13,7 +13,9 @@ ClassMethod Run()
 {
      If %request.Get("method") = "preview" {
 		set branchName = ##class(SourceControl.Git.Utils).GetCurrentBranch()
-		do ##class(SourceControl.Git.Utils).RunGitWithArgs(.errStream, .outStream, "pull",  "origin/" _ branchName)
+		do ##class(SourceControl.Git.Utils).RunGitWithArgs(.errStream, .outStream, "fetch")
+		kill errStream, outStream
+		do ##class(SourceControl.Git.Utils).RunGitWithArgs(.errStream, .outStream, "diff", "origin/"_branchName)
      } ElseIf %request.Get("method") = "pull" {
          Do ##class(SourceControl.Git.API).Pull()
      } ElseIf %request.Get("method") = "init" {