warning message to avoid function duplication

src/fr/inra/pappso/xtandempipeline/grouping/SubGroup.java

@@ -104,6 +104,8 @@ public class SubGroup extends HashSampleScanSet {
 	}
 
 	public int getNumberOfSpectraInGrpMsSample(GrpMsSample msSample) {
+		// warning : this is the same function as getTotalHashSampleScantoMsRun in HashSampleScanSetProt
+		// this needs some refactoring
 		int count = 0;
 		for (HashSampleScan hash : this) {
 			if (hash.getGrpMsSample().isIdenticalTo(msSample)) {