fix null pointer dereference

Author: khvn26

client_test.go

@@ -236,7 +236,7 @@ func TestGetFlagsTransientTraits(t *testing.T) {
 	expectedRequestBody := `{"identifier":"test_identity","traits":` +
 		`[{"trait_key":"NullTrait","trait_value":null},` +
 		`{"trait_key":"StringTrait","trait_value":"value"},` +
-		`{"trait_key":"TransientTrait","trait_value":"value","transient":true}],"transient":false}`
+		`{"trait_key":"TransientTrait","trait_value":"value","transient":true}]}`
 	server := getTestHttpServer(t, "/api/v1/identities/", fixtures.EnvironmentAPIKey, &expectedRequestBody, fixtures.IdentityResponseJson)
 	defer server.Close()
 

utils.go

@@ -16,6 +16,9 @@ func mapTraitEvaluationContextToTrait(tKey string, tCtx *TraitEvaluationContext)
 	if tCtx == nil {
 		return &Trait{TraitKey: tKey, TraitValue: nil}
 	}
+	if tCtx.Transient == nil {
+		return &Trait{TraitKey: tKey, TraitValue: tCtx.Value}
+	}
 	return &Trait{TraitKey: tKey, TraitValue: tCtx.Value, Transient: *tCtx.Transient}
 }