Modify commentary

Signed-off-by: p-arvy <pierre.arvy@artelys.com>

src/main/java/com/powsybl/openloadflow/sensi/DcSensitivityAnalysis.java

@@ -373,7 +373,7 @@ private void calculateSensitivityValuesForAContingency(DcLoadFlowContext loadFlo
             resultWriter.writeContingencyStatus(contingency.getIndex(), SensitivityAnalysisResult.Status.NO_IMPACT);
         }
 
-        // we need to recompute the factor states because the rhs has changed or
+        // we need to recompute the factor states because the rhs or the participating elements have changed
         if (participatingElementsChanged || rhsChanged) {
             newFactorStates = calculateFactorStates(loadFlowContext, factorGroups, newParticipatingElements);
         }