From 25f8facb494aeece5d3844449d50cc0dd0bfb630 Mon Sep 17 00:00:00 2001
From: Renan Castro <renanccastro@gmail.com>
Date: Thu, 10 Feb 2022 17:17:13 -0300
Subject: [PATCH] Also support the new "projection" field inside the decision
 of using oplog for a published cursor or not

---
 packages/mongo/oplog_observe_driver.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/mongo/oplog_observe_driver.js b/packages/mongo/oplog_observe_driver.js
index 57a0448d65..773e7e3feb 100644
--- a/packages/mongo/oplog_observe_driver.js
+++ b/packages/mongo/oplog_observe_driver.js
@@ -984,9 +984,10 @@ OplogObserveDriver.cursorSupported = function (cursorDescription, matcher) {
 
   // If a fields projection option is given check if it is supported by
   // minimongo (some operators are not supported).
-  if (options.fields) {
+  const fields = options.fields || options.projection;
+  if (fields) {
     try {
-      LocalCollection._checkSupportedProjection(options.fields);
+      LocalCollection._checkSupportedProjection(fields);
     } catch (e) {
       if (e.name === "MinimongoError") {
         return false;