🐛 Try to make mquery checksums stable (#2592)

* 🐛 Try to make mquery checksums stable

If we change a value inside the query, we need to recalculate the
checksum. If checksums aren't stable, this ends up breaking parts of the
resolver code in cnspec

* Remove forced title for mquery filter

We don't understand why it is necessary

explorer/mquery.go

@@ -288,12 +288,16 @@ func (m *Mquery) RefreshAsFilter(mrn string, schema llx.Schema) (*llx.CodeBundle
 		return nil, errors.New("filters require MQL snippets (no compiled code generated)")
 	}
 
+	checksumInvalidated := false
 	if mrn != "" {
 		m.Mrn = mrn + "/filter/" + m.CodeId
+		checksumInvalidated = true
 	}
 
-	if m.Title == "" {
-		m.Title = m.Query
+	if checksumInvalidated {
+		if err := m.RefreshChecksum(context.Background(), schema, nil); err != nil {
+			return nil, err
+		}
 	}
 
 	return bundle, nil

explorer/mquery_test.go

@@ -13,6 +13,24 @@ import (
 	"go.mondoo.com/cnquery/v9/providers-sdk/v1/testutils"
 )
 
+func TestMquery_RefreshAsAssetFilterStableChecksum(t *testing.T) {
+	m := &Mquery{
+		Mql: "true",
+		Uid: "my-id0",
+	}
+
+	x := testutils.LinuxMock()
+
+	_, err := m.RefreshAsFilter("//owner/me", x.Schema())
+	require.NoError(t, err)
+	assert.Equal(t, "//owner/me/filter/"+m.CodeId, m.Mrn)
+
+	cs := m.Checksum
+	_, err = m.RefreshAsFilter("//owner/me", x.Schema())
+	require.NoError(t, err)
+	assert.Equal(t, cs, m.Checksum)
+}
+
 func TestMquery_Refresh(t *testing.T) {
 	a := &Mquery{
 		Mql:   "mondoo.version != props.world",