From 4e1ca6f326e6c799120828ba203f9fb5b2af4b7f Mon Sep 17 00:00:00 2001
From: Iwona Just <iwona@pixelandtonic.com>
Date: Fri, 16 Feb 2024 09:42:12 +0000
Subject: [PATCH 1/3] allow removal of fullName

---
 src/elements/User.php | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/elements/User.php b/src/elements/User.php
index 4cbe0c1d1fe..9c5f80e0088 100644
--- a/src/elements/User.php
+++ b/src/elements/User.php
@@ -977,6 +977,16 @@ public function setAttributes($values, $safeOnly = true): void
             $this->fullName = null;
         }
 
+        // if we're set to show full name field, and it's empty, clear out first and last names too
+        if (
+            !Craft::$app->getConfig()->getGeneral()->showFirstAndLastNameFields &&
+            array_key_exists('fullName', $values) &&
+            empty(trim($values['fullName']))
+        ) {
+            $this->firstName = null;
+            $this->lastName = null;
+        }
+
         parent::setAttributes($values, $safeOnly);
     }
 

From 54e6eef53b257fbd7c2ca7c35cba376d9910d487 Mon Sep 17 00:00:00 2001
From: brandonkelly <brandon@pixelandtonic.com>
Date: Sat, 17 Feb 2024 06:13:49 -0800
Subject: [PATCH 2/3] Cleanup

---
 src/elements/User.php | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/src/elements/User.php b/src/elements/User.php
index 9c5f80e0088..dc51beee694 100644
--- a/src/elements/User.php
+++ b/src/elements/User.php
@@ -973,18 +973,15 @@ public function setAttributes($values, $safeOnly = true): void
             }
         }
 
-        if (array_key_exists('firstName', $values) || array_key_exists('lastName', $values)) {
-            $this->fullName = null;
-        }
-
-        // if we're set to show full name field, and it's empty, clear out first and last names too
-        if (
-            !Craft::$app->getConfig()->getGeneral()->showFirstAndLastNameFields &&
-            array_key_exists('fullName', $values) &&
-            empty(trim($values['fullName']))
-        ) {
+        if (array_key_exists('fullName', $values)) {
+            // Clear out the first and last names.
+            // They'll get reset from prepareNamesForSave() if fullName isn't empty.
             $this->firstName = null;
             $this->lastName = null;
+        } elseif (array_key_exists('firstName', $values) || array_key_exists('lastName', $values)) {
+            // Clear out the full name.
+            // It'll get reset from prepareNamesForSave() if the first/last names aren't empty.
+            $this->fullName = null;
         }
 
         parent::setAttributes($values, $safeOnly);

From 3e01ed0cacd198fac68abc326dac2be44fc3ecee Mon Sep 17 00:00:00 2001
From: brandonkelly <brandon@pixelandtonic.com>
Date: Sat, 17 Feb 2024 06:16:41 -0800
Subject: [PATCH 3/3] Release note

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e8dba40cfd6..30e5b3c4243 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 - Slideout sidebars are now always toggleable; not just when the slideout is too narrow to show the sidebar alongside the content. ([#14418](https://github.com/craftcms/cms/pull/14418))
 - Field Layout Designers now hide the component library sidebar in favor of “Add” disclosure menus, when they’re too narrow to show the sidebar alongside configured tabs. ([#14411](https://github.com/craftcms/cms/pull/14411))
+- Fixed a bug where it wasn’t possible to clear out users’ full names once they were set. ([#14402](https://github.com/craftcms/cms/pull/14402))
 
 ## 5.0.0-beta.2 - 2024-02-15