fix: Fixes git over azure devops Fixes argoproj#11705

Signed-off-by: Christian Lütke Stetzkamp <cls@tessitura.io>

workflow/artifacts/git/git.go

@@ -10,6 +10,7 @@ import (
 	"github.com/go-git/go-git/v5"
 	"github.com/go-git/go-git/v5/config"
 	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/protocol/packp/capability"
 	"github.com/go-git/go-git/v5/plumbing/transport"
 	"github.com/go-git/go-git/v5/plumbing/transport/http"
 	ssh2 "github.com/go-git/go-git/v5/plumbing/transport/ssh"
@@ -84,6 +85,14 @@ func (g *ArtifactDriver) Delete(s *wfv1.Artifact) error {
 
 func (g *ArtifactDriver) Load(inputArtifact *wfv1.Artifact, path string) error {
 	a := inputArtifact.Git
+
+	// Azure DevOps requires capabilities multi_ack / multi_ack_detailed,
+	// which are not fully implemented and by default are included in
+	// transport.UnsupportedCapabilities.
+	transport.UnsupportedCapabilities = []capability.Capability{
+		capability.ThinPack,
+	}
+
 	sshUser := GetUser(a.Repo)
 	closer, auth, err := g.auth(sshUser)
 	if err != nil {