Add support for the old invalid lfs client.

Author: KN4CK3R

services/lfs/server.go

@@ -393,18 +393,25 @@ func buildObjectResponse(rc *requestContext, pointer lfs_module.Pointer, downloa
 		rep.Actions = make(map[string]*lfs_module.Link)
 
 		header := make(map[string]string)
-		verifyHeader := make(map[string]string)
 
 		if len(rc.Authorization) > 0 {
 			header["Authorization"] = rc.Authorization
-			verifyHeader["Authorization"] = rc.Authorization
 		}
 
 		if download {
 			rep.Actions["download"] = &lfs_module.Link{Href: rc.DownloadLink(pointer), Header: header}
 		}
 		if upload {
 			rep.Actions["upload"] = &lfs_module.Link{Href: rc.UploadLink(pointer), Header: header}
+
+			verifyHeader := make(map[string]string)
+			for key, value := range header {
+				verifyHeader[key] = value
+			}
+
+			// This is only needed to workaround https://github.com/git-lfs/git-lfs/issues/3662
+			verifyHeader["Accept"] = lfs_module.MediaType
+
 			rep.Actions["verify"] = &lfs_module.Link{Href: rc.VerifyLink(pointer), Header: verifyHeader}
 		}
 	}