fixed

src/Plugin/UiPatterns/DerivableContext/EntityReferencedDerivableContext.php

@@ -77,9 +77,17 @@ class EntityReferencedDerivableContext extends DerivableContextPluginBase {
    */
   public function getDerivedContexts(): array {
     $referenced_entities = $this->getEntities();
-    $removed_context_keys = ["entity", "ui_patterns:field:index", "ui_patterns:field:items", "bundle"];
+    $removed_context_keys = ["entity", "ui_patterns:field:", "bundle"];
     $base_context = array_filter($this->context, function ($one_context, $one_context_id) use (&$removed_context_keys) {
-          return !in_array($one_context_id, $removed_context_keys);
+      if (in_array($one_context_id, $removed_context_keys)) {
+        return FALSE;
+      }
+      foreach ($removed_context_keys as $removed_context_key) {
+        if (str_starts_with($one_context_id, $removed_context_key)) {
+          return FALSE;
+        }
+      }
+      return TRUE;
     }, ARRAY_FILTER_USE_BOTH);
     $base_context = RequirementsContext::removeFromContext(["field_granularity:item"], $base_context);
     $metadata = $this->getMetadata();

src/Plugin/UiPatterns/Source/DerivableContextSourceBase.php

@@ -104,6 +104,16 @@ abstract class DerivableContextSourceBase extends SourcePluginBase {
     return empty($returned) ? NULL : $returned;
   }
 
+  /**
+   * Get the context to pass to the derivable context plugin.
+   *
+   * @return array
+   *   The context.
+   */
+  protected function getContextForDerivation(): array {
+    return $this->context;
+  }
+
   /**
    * Set the source plugin according to configuration.
    *
@@ -117,7 +127,7 @@ abstract class DerivableContextSourceBase extends SourcePluginBase {
       return $this->sourcePlugins;
     }
     /** @var \Drupal\ui_patterns\DerivableContextInterface $derivable_context_plugin */
-    $derivable_context_plugin = $this->derivableContextManager->createInstance($derivable_context, DerivableContextPluginBase::buildConfiguration($this->context));
+    $derivable_context_plugin = $this->derivableContextManager->createInstance($derivable_context, DerivableContextPluginBase::buildConfiguration($this->getContextForDerivation()));
     if (!$derivable_context_plugin) {
       return $this->sourcePlugins;
     }

src/Plugin/UiPatterns/Source/EntityReferencedSource.php

@@ -31,6 +31,18 @@ class EntityReferencedSource extends DerivableContextSourceBase {
     return $form;
   }
 
+  /**
+   * Get the context to pass to the derivable context plugin.
+   *
+   * @return array
+   *   The context.
+   */
+  protected function getContextForDerivation(): array {
+    return array_filter($this->context, function ($key) {
+      return $key !== 'ui_patterns:field:index';
+    }, ARRAY_FILTER_USE_KEY);
+  }
+
   /**
    * {@inheritDoc}
    */