Update checkother.cpp

Author: chrchr-github

lib/checkother.cpp

@@ -3056,9 +3056,11 @@ void CheckOtherImpl::checkDuplicateExpression()
                         }
                         if (tok->str() != "=") {
                             const Token* par = tok->astParent();
-                            while (par && tok->str() == par->str() && precedes(par, tok)) { // chain of identical operators with parentheses
+                            while (par && tok->str() == par->str() && precedes(par->astOperand1(), tok)) { // chain of identical operators with parentheses
                                 checkDuplicate(par->astOperand1(), tok->astOperand1(), par);
                                 checkDuplicate(par->astOperand1(), tok->astOperand2(), par);
+                                checkDuplicate(par->astOperand2(), tok->astOperand1(), par);
+                                checkDuplicate(par->astOperand2(), tok->astOperand2(), par);
                                 par = par->astParent();
                             }
                         }