Prevent exec of value vldt/san/fmt on val. expr fields

compose/service/values/formatter.go

@@ -38,6 +38,11 @@ func (f formatter) Run(m *types.Module, vv types.RecordValueSet) types.RecordVal
 			continue
 		}
 
+		if fld.Expressions.ValueExpr != "" {
+			// do not do any validation if field has value expression!
+			continue
+		}
+
 		if !(fld.Expressions.DisableDefaultFormatters && len(fld.Expressions.Formatters) > 0) {
 			// Per field type validators
 			switch strings.ToLower(fld.Kind) {

compose/service/values/sanitizer.go

@@ -73,6 +73,11 @@ func (s sanitizer) Run(m *types.Module, vv types.RecordValueSet) (out types.Reco
 			continue
 		}
 
+		if f.Expressions.ValueExpr != "" {
+			// do not do any sanitization if field has value expression!
+			continue
+		}
+
 		if v.IsDeleted() || !v.Updated {
 			// Ignore unchanged and deleted
 			continue

compose/service/values/validator.go

@@ -145,6 +145,11 @@ fields:
 			continue
 		}
 
+		if f.Expressions.ValueExpr != "" {
+			// do not do any validation if field has value expression!
+			continue
+		}
+
 		if !(f.Expressions.DisableDefaultValidators && len(f.Expressions.Validators) > 0) {
 			if v.Value == "" {
 				// Nothing to do with empty value