On workspace delete, do cleanup / cascade delete

src/libs/ReportUtils.js

@@ -1182,6 +1182,14 @@ function getChatByParticipants(newParticipantList) {
     });
 }
 
+/**
+ * @param {String} policyID
+ * @returns {Array}
+ */
+function getAllPolicyReports(policyID) {
+    return _.filter(allReports, report => report && report.policyID === policyID);
+}
+
 /**
 * Returns true if Chronos is one of the chat participants (1:1)
 * @param {Object} report
@@ -1256,6 +1264,7 @@ export {
     buildOptimisticReportAction,
     shouldReportBeInOptionList,
     getChatByParticipants,
+    getAllPolicyReports,
     getIOUReportActionMessage,
     getDisplayNameForParticipant,
     isIOUReport,

src/libs/actions/Policy.js

@@ -22,8 +22,20 @@ Onyx.connect({
         if (!key) {
             return;
         }
-
         if (val === null || val === undefined) {
+            // If we are deleting a policy, we have to check every report linked to that policy
+            // and unset the draft indicator (pencil icon) alongside removing any draft comments. Clearing these values will keep the newly archived chats from being displayed in the LHN.
+            // More info: https://github.com/Expensify/App/issues/14260
+            const policyID = key.replace(ONYXKEYS.COLLECTION.POLICY, '');
+            const policyReports = ReportUtils.getAllPolicyReports(policyID);
+            const cleanUpMergeQueries = {};
+            const cleanUpSetQueries = {};
+            _.each(policyReports, ({reportID}) => {
+                cleanUpMergeQueries[`${ONYXKEYS.COLLECTION.REPORT}${reportID}`] = {hasDraft: false};
+                cleanUpSetQueries[`${ONYXKEYS.COLLECTION.REPORT_DRAFT_COMMENT}${reportID}`] = null;
+            });
+            Onyx.mergeCollection(ONYXKEYS.COLLECTION.REPORT, cleanUpMergeQueries);
+            Onyx.multiSet(cleanUpSetQueries);
             delete allPolicies[key];
             return;
         }