Fix user cannot remove the description

src/libs/actions/Task.js

@@ -1,6 +1,7 @@
 import Onyx from 'react-native-onyx';
 import lodashGet from 'lodash/get';
 import Str from 'expensify-common/lib/str';
+import _ from 'underscore';
 import ONYXKEYS from '../../ONYXKEYS';
 import * as API from '../API';
 import * as ReportUtils from '../ReportUtils';
@@ -278,19 +279,18 @@ function reopenTask(taskReportID, taskTitle) {
  * @function editTask
  * @param {object} report
  * @param {string} ownerEmail
- * @param {string} title
- * @param {string} description
- * @param {string} assignee
+ * @param {{title?: string, description?: string, assignee?:string}} editedTask
  * @returns {object} action
  *
  */
 
-function editTaskAndNavigate(report, ownerEmail, title, description, assignee) {
+function editTaskAndNavigate(report, ownerEmail, {title, description, assignee}) {
     // Create the EditedReportAction on the task
     const editTaskReportAction = ReportUtils.buildOptimisticEditedTaskReportAction(ownerEmail);
 
-    // Sometimes title is undefined, so we need to check for that, and we provide it to multiple functions
+    // Sometimes title or description is undefined, so we need to check for that, and we provide it to multiple functions
     const reportName = (title || report.reportName).trim();
+    const reportDescription = (!_.isUndefined(description) ? description : report.description).trim();
 
     // If we make a change to the assignee, we want to add a comment to the assignee's chat
     let optimisticAssigneeAddComment;
@@ -313,7 +313,7 @@ function editTaskAndNavigate(report, ownerEmail, title, description, assignee) {
             key: `${ONYXKEYS.COLLECTION.REPORT}${report.reportID}`,
             value: {
                 reportName,
-                description: description.trim(),
+                description: reportDescription,
                 managerEmail: assignee || report.managerEmail,
             },
         },
@@ -368,7 +368,7 @@ function editTaskAndNavigate(report, ownerEmail, title, description, assignee) {
         {
             taskReportID: report.reportID,
             title: reportName,
-            description: (description || report.description).trim(),
+            description: reportDescription,
             assignee: assignee || report.managerEmail,
             editedTaskReportActionID: editTaskReportAction.reportActionID,
             assigneeChatReportActionID: optimisticAssigneeAddComment ? optimisticAssigneeAddComment.reportAction.reportActionID : 0,

src/pages/tasks/TaskAssigneeSelectorModal.js

@@ -183,7 +183,7 @@ const TaskAssigneeSelectorModal = (props) => {
             // This would cause the app to crash, so we need to make sure we have a DM thread
             TaskUtils.setAssigneeValue(option.login, props.task.shareDestination, OptionsListUtils.isCurrentUser(option));
             // Pass through the selected assignee
-            TaskUtils.editTaskAndNavigate(props.task.report, props.session.email, '', '', option.login);
+            TaskUtils.editTaskAndNavigate(props.task.report, props.session.email, {assignee: option.login});
         }
     };
 

src/pages/tasks/TaskDescriptionPage.js

@@ -41,7 +41,7 @@ function TaskDescriptionPage(props) {
         (values) => {
             // Set the description of the report in the store and then call TaskUtils.editTaskReport
             // to update the description of the report on the server
-            TaskUtils.editTaskAndNavigate(props.task.report, props.session.email, '', values.description, '');
+            TaskUtils.editTaskAndNavigate(props.task.report, props.session.email, {description: values.description});
         },
         [props],
     );

src/pages/tasks/TaskTitlePage.js

@@ -59,7 +59,7 @@ function TaskTitlePage(props) {
             // Set the description of the report in the store and then call TaskUtils.editTaskReport
             // to update the description of the report on the server
 
-            TaskUtils.editTaskAndNavigate(props.task.report, props.session.email, values.title, '', '');
+            TaskUtils.editTaskAndNavigate(props.task.report, props.session.email, {title: values.title});
         },
         [props],
     );