Merge pull request #14205 from mvogttech/ejson-optimize_equals

perf(ejson): early bail-out on key count mismatch in EJSON.equals

packages/ejson/ejson.js

@@ -611,6 +611,9 @@ EJSON.equals = (a, b, options) => {
   let ret;
   const aKeys = keysOf(a);
   const bKeys = keysOf(b);
+  if (aKeys.length !== bKeys.length) {
+    return false;
+  }
   if (keyOrderSensitive) {
     i = 0;
     ret = aKeys.every(key => {