Merge pull request #20076 from dukenv0307/fix/19364

Fix page not found appears for a second when user opens a thread

src/libs/ReportUtils.js

@@ -1041,6 +1041,16 @@ function getReportName(report) {
     return _.map(participantsWithoutCurrentUser, (login) => getDisplayNameForParticipant(login, isMultipleParticipantReport)).join(', ');
 }
 
+/**
+ * Get the report for a reportID
+ *
+ * @param {String} reportID
+ * @returns {Object}
+ */
+function getReport(reportID) {
+    return allReports[`${ONYXKEYS.COLLECTION.REPORT}${reportID}`];
+}
+
 /**
  * Navigate to the details page of a given report
  *
@@ -2179,6 +2189,7 @@ export {
     getRoomWelcomeMessage,
     getDisplayNamesWithTooltips,
     getReportName,
+    getReport,
     getReportIDFromLink,
     getRouteFromLink,
     navigateToDetailsPage,

src/libs/actions/Report.js

@@ -380,6 +380,16 @@ function openReport(reportID, participantList = [], newReportObject = {}, parent
         params.shouldRetry = false;
     }
 
+    // If we open an exist report, but it is not present in Onyx yet, we should change the method to set for this report
+    // and we need data to be available when we navigate to the chat page
+    if (_.isEmpty(ReportUtils.getReport(reportID))) {
+        optimisticReportData.onyxMethod = Onyx.METHOD.SET;
+        optimisticReportData.value = {
+            ...optimisticReportData.value,
+            reportID: reportID.toString(),
+        };
+    }
+
     // If we are creating a new report, we need to add the optimistic report data and a report action
     if (!_.isEmpty(newReportObject)) {
         // Change the method to set for new reports because it doesn't exist yet, is faster,