SSDM-4678 : Requests can only have one product, added comment

SVN: 38122

openbis_standard_technologies/dist/core-plugins/eln-lims/1/as/webapps/eln-lims/html/js/views/SampleForm/SampleFormController.js

@@ -111,7 +111,7 @@ function SampleFormController(mainController, mode, sample) {
 		//
 		// Parents/Children Links
 		//
-		if(!isCopyWithNewCode && sample.sampleTypeCode !== "REQUEST") {
+		if(!isCopyWithNewCode && sample.sampleTypeCode !== "REQUEST") { // REQUESTS are validated below
 			if(!_this._sampleFormModel.sampleLinksParents.isValid()) {
 				return;
 			}