diff --git a/flag_test.go b/flag_test.go
index 7d7a80b359..bc01a5a205 100644
--- a/flag_test.go
+++ b/flag_test.go
@@ -2375,6 +2375,22 @@ func TestParseMultiBoolT(t *testing.T) {
 	}).Run(buildTestContext(t), []string{"run", "--implode=false"})
 }
 
+func TestStringSliceFlagApply_LocalPreservesRepeatedValues(t *testing.T) {
+	var got []string
+	cmd := &Command{
+		Flags: []Flag{
+			&StringSliceFlag{Name: "values", Local: true},
+		},
+		Action: func(_ context.Context, cmd *Command) error {
+			got = cmd.StringSlice("values")
+			return nil
+		},
+	}
+
+	require.NoError(t, cmd.Run(buildTestContext(t), []string{"run", "--values", "a,b,c", "--values", "d", "--values", "e"}))
+	require.Equal(t, []string{"a", "b", "c", "d", "e"}, got)
+}
+
 func TestStringSlice_Serialized_Set(t *testing.T) {
 	sl0 := NewStringSlice("a", "b")
 	ser0 := sl0.Serialize()