Attempts to fix prepublish.

Author: gfraiteur

src/PostSharp.Engineering.BuildTools/Build/Publishing/PrePublishCommand.cs

@@ -25,12 +25,7 @@ public static bool Execute( BuildContext context, PublishSettings settings )
         {
             return false;
         }
-
-        if ( !MasterGenerator.TryWriteFiles( context, settings ) )
-        {
-            return false;
-        }
-
+        
         if ( product.ProductFamily.UpstreamProductFamily != null && !DownstreamMerge.CheckUpstreamChanges( context, settings ) )
         {
             return false;

src/PostSharp.Engineering.BuildTools/Utilities/GitHelper.cs

@@ -72,7 +72,7 @@ public static bool TryCheckoutAndPull( BuildContext context, string branch )
         if ( !ToolInvocationHelper.InvokeTool(
                 context.Console,
                 "git",
-                $"pull origin {branch}",
+                $"pull origin {branch} --force",
                 context.RepoDirectory ) )
         {
             return false;