check

public/assets/apps/user-self-management/app.js

@@ -280,6 +280,18 @@
         return Array.from(next);
     };
 
+    const syncSelectionWithCheckedState = (collection, value, isChecked) => {
+        const next = new Set(collection);
+
+        if (isChecked) {
+            next.add(value);
+        } else {
+            next.delete(value);
+        }
+
+        return Array.from(next);
+    };
+
     const buildPatch = (state) => ({
         profile: state.draft.profile,
         desktop: {
@@ -388,13 +400,21 @@
             }
 
             if (target.dataset.appId) {
-                state.draft.apps.enabled_ids = toggleSelection(state.draft.apps.enabled_ids, target.dataset.appId);
+                state.draft.apps.enabled_ids = syncSelectionWithCheckedState(
+                    state.draft.apps.enabled_ids,
+                    target.dataset.appId,
+                    target.checked
+                );
                 renderApp(root, state);
                 return;
             }
 
             if (target.dataset.widgetId) {
-                state.draft.widgets.active_ids = toggleSelection(state.draft.widgets.active_ids, target.dataset.widgetId);
+                state.draft.widgets.active_ids = syncSelectionWithCheckedState(
+                    state.draft.widgets.active_ids,
+                    target.dataset.widgetId,
+                    target.checked
+                );
                 renderApp(root, state);
             }
         });

src/App/UserSelfManagementService.php

@@ -314,6 +314,10 @@ final class UserSelfManagementService
     {
         $trimmed = trim($value);
 
-        return mb_substr($trimmed, 0, $maxLength);
+        if (function_exists('mb_substr')) {
+            return mb_substr($trimmed, 0, $maxLength);
+        }
+
+        return substr($trimmed, 0, $maxLength);
     }
 }