fields fix

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

zerolog.go

@@ -33,7 +33,7 @@ func (l *zeroLogger) Clone(opts ...logger.Option) logger.Logger {
 	for _, o := range opts {
 		o(&nl.opts.Options)
 	}
-
+	nl.opts.Options.Fields = append(l.opts.Options.Fields, nl.opts.Options.Fields...)
 	_ = nl.Init()
 	return nl
 }

zerolog_test.go

@@ -25,9 +25,9 @@ func TestFields(t *testing.T) {
 		t.Fatalf("logger fields not works, buf contains: %s", buf.Bytes())
 	}
 	buf.Reset()
-	mnl := l.Fields(map[string]interface{}{"key": "val"})
+	mnl := nl.Fields("key1", "val1")
 	mnl.Infof(ctx, "message")
-	if bytes.Contains(buf.Bytes(), []byte(`"key":"val"`)) {
+	if !bytes.Contains(buf.Bytes(), []byte(`"key1":"val1"`)) || !bytes.Contains(buf.Bytes(), []byte(`"key":"val"`)) {
 		t.Fatalf("logger fields not works, buf contains: %s", buf.Bytes())
 	}
 }