fix(v3): restore the error check inverted in processDependencyConditions

When converting the type assertion to errors.AsType in 025418291, the
negation was dropped, so the "real error" warning fired for the normal
missing-condition case (ErrNoValue) and genuine PathValue errors were
silenced instead. This diverges from the v2 implementation the code was
based on. Restore the negation and add a regression test.

Signed-off-by: zjncs <18910855655@163.com>

internal/chart/v3/util/dependencies.go

@@ -53,7 +53,7 @@ func processDependencyConditions(reqs []*chart.Dependency, cvals common.Values,
 						break
 					}
 					slog.Warn("returned non-bool value", "path", c, "chart", r.Name)
-				} else if _, ok := errors.AsType[common.ErrNoValue](err); ok {
+					} else if _, ok := errors.AsType[common.ErrNoValue](err); !ok {
 						// this is a real error
 						slog.Warn("the method PathValue returned error", slog.Any("error", err))
 					}

internal/chart/v3/util/dependencies_test.go

@@ -15,6 +15,8 @@ limitations under the License.
 package util
 
 import (
+	"bytes"
+	"log/slog"
 	"os"
 	"path/filepath"
 	"sort"
@@ -55,6 +57,29 @@ func TestLoadDependency(t *testing.T) {
 	check(c.Lock.Dependencies)
 }
 
+// An absent condition path is the normal case for every unset condition and
+// must not be reported as a PathValue error, matching the v2 implementation.
+func TestProcessDependencyConditionsAbsentPathNoWarning(t *testing.T) {
+	prev := slog.Default()
+	t.Cleanup(func() { slog.SetDefault(prev) })
+
+	var logBuf bytes.Buffer
+	slog.SetDefault(slog.New(slog.NewJSONHandler(&logBuf, nil)))
+
+	reqs := []*chart.Dependency{
+		{Name: "subchart1", Condition: "subchart1.enabled"},
+		{Name: "subchart2", Condition: "not.in.values"},
+	}
+	v := common.Values{"subchart1": map[string]any{"enabled": true}}
+
+	processDependencyConditions(reqs, v, "")
+
+	assert.True(t, reqs[0].Enabled, "expected the present condition to be applied")
+	assert.False(t, reqs[1].Enabled, "expected the absent condition to leave the dependency disabled")
+	assert.NotContains(t, logBuf.String(), "PathValue returned error",
+		"an absent condition path is not a PathValue error and must not be warned about")
+}
+
 func TestDependencyEnabled(t *testing.T) {
 	type M = map[string]any
 	tests := []struct {