Prevent showing duplicate entry under .status.activeRevisions (#2444)

Updating `ClusterExtension` with duplicate entry under `.status.activeRevisions` fails.
Thus, we repopulate it from the installed and rolling out revisions.

Author: pedjak

internal/operator-controller/controllers/boxcutter_reconcile_steps.go

@@ -115,6 +115,7 @@ func ApplyBundleWithBoxcutter(a Applier) ReconcileStepFunc {
 			return nil, err
 		}
 
+		ext.Status.ActiveRevisions = []ocv1.RevisionStatus{}
 		// Mirror Available/Progressing conditions from the installed revision
 		if i := state.revisionStates.Installed; i != nil {
 			for _, cndType := range []string{ocv1.ClusterExtensionRevisionTypeAvailable, ocv1.ClusterExtensionRevisionTypeProgressing} {

internal/operator-controller/controllers/boxcutter_reconcile_steps_apply_test.go

@@ -0,0 +1,157 @@
+/*
+Copyright 2026.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package controllers
+
+import (
+	"context"
+	"io/fs"
+	"testing"
+	"testing/fstest"
+
+	"github.com/stretchr/testify/require"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	ocv1 "github.com/operator-framework/operator-controller/api/v1"
+)
+
+type mockApplier struct {
+	err error
+}
+
+func (m *mockApplier) Apply(_ context.Context, _ fs.FS, _ *ocv1.ClusterExtension, _ map[string]string, _ map[string]string) (bool, string, error) {
+	return true, "", m.err
+}
+
+func TestApplyBundleWithBoxcutter(t *testing.T) {
+	type args struct {
+		activeRevisions []ocv1.RevisionStatus
+		revisionStates  *RevisionStates
+	}
+	type want struct {
+		activeRevisions []ocv1.RevisionStatus
+	}
+
+	for _, tc := range []struct {
+		name string
+		args args
+		want want
+	}{
+		{
+			name: "two active revisions during update",
+			args: args{
+				activeRevisions: []ocv1.RevisionStatus{
+					{Name: "ce-1"},
+				},
+				revisionStates: &RevisionStates{
+					Installed: &RevisionMetadata{
+						RevisionName: "ce-1",
+						BundleMetadata: ocv1.BundleMetadata{
+							Name:    "test-bundle",
+							Version: "1.0.0",
+						},
+					},
+					RollingOut: []*RevisionMetadata{
+						{RevisionName: "ce-2"},
+					},
+				},
+			},
+			want: want{
+				activeRevisions: []ocv1.RevisionStatus{
+					{Name: "ce-1"},
+					{Name: "ce-2"},
+				},
+			},
+		},
+		{
+			name: "replaces existing with new active revisions",
+			args: args{
+				activeRevisions: []ocv1.RevisionStatus{
+					{Name: "ce-1"},
+				},
+				revisionStates: &RevisionStates{
+					Installed: &RevisionMetadata{
+						RevisionName: "ce-2",
+						BundleMetadata: ocv1.BundleMetadata{
+							Name:    "test-bundle",
+							Version: "1.0.1",
+						},
+					},
+				},
+			},
+			want: want{
+				activeRevisions: []ocv1.RevisionStatus{
+					{Name: "ce-2"},
+				},
+			},
+		},
+		{
+			name: "ongoing installation",
+			args: args{
+				activeRevisions: []ocv1.RevisionStatus{
+					{Name: "ce-1"},
+				},
+				revisionStates: &RevisionStates{
+					RollingOut: []*RevisionMetadata{
+						{RevisionName: "ce-1"},
+					},
+				},
+			},
+			want: want{
+				activeRevisions: []ocv1.RevisionStatus{
+					{Name: "ce-1"},
+				},
+			},
+		},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			ctx := context.Background()
+			applier := &mockApplier{}
+
+			ext := &ocv1.ClusterExtension{
+				ObjectMeta: metav1.ObjectMeta{
+					Name:       "test-ext",
+					Generation: 1,
+				},
+				Status: ocv1.ClusterExtensionStatus{
+					ActiveRevisions: tc.args.activeRevisions,
+				},
+			}
+
+			state := &reconcileState{
+				revisionStates: tc.args.revisionStates,
+				resolvedRevisionMetadata: &RevisionMetadata{
+					BundleMetadata: ocv1.BundleMetadata{
+						Name:    "test-bundle",
+						Version: "1.0.0",
+					},
+				},
+				imageFS: fstest.MapFS{},
+			}
+
+			stepFunc := ApplyBundleWithBoxcutter(applier)
+			result, err := stepFunc(ctx, state, ext)
+			require.NoError(t, err)
+			require.Nil(t, result)
+
+			require.Len(t, ext.Status.ActiveRevisions, len(tc.want.activeRevisions))
+			for i, expected := range tc.want.activeRevisions {
+				require.Equal(t, expected.Name, ext.Status.ActiveRevisions[i].Name,
+					"ActiveRevisions[%d].Name mismatch", i)
+			}
+		})
+	}
+}