Mrand of zero to any multiple should return 0 (#1773)

src/PhpSpreadsheet/Calculation/MathTrig.php

@@ -851,7 +851,7 @@ class MathTrig
         $multiple = Functions::flattenSingleValue($multiple);
 
         if ((is_numeric($number)) && (is_numeric($multiple))) {
-            if ($multiple == 0) {
+            if ($number == 0 || $multiple == 0) {
                 return 0;
             }
             if ((self::SIGN($number)) == (self::SIGN($multiple))) {

tests/data/Calculation/MathTrig/MROUND.php

@@ -41,6 +41,11 @@ return [
         31415.92654,
         1,
     ],
+    [
+        0,
+        0,
+        5,
+    ],
     [
         '#NUM!',
         5,