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diff --git a/web/core/lib/Drupal/Core/Entity/TranslatableRevisionableInterface.php b/web/core/lib/Drupal/Core/Entity/TranslatableRevisionableInterface.php
new file mode 100644
index 000000000..7460eeb16
--- /dev/null
+++ b/web/core/lib/Drupal/Core/Entity/TranslatableRevisionableInterface.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace Drupal\Core\Entity;
+
+/**
+ * Provides methods for an entity to support revision translation.
+ */
+interface TranslatableRevisionableInterface extends TranslatableInterface, RevisionableInterface {
+
+  /**
+   * Checks whether this is the latest revision affecting this translation.
+   *
+   * @return bool
+   *   TRUE if this revision is the latest one affecting the active translation,
+   *   FALSE otherwise.
+   */
+  public function isLatestTranslationAffectedRevision();
+
+  /**
+   * Marks the current revision translation as affected.
+   *
+   * Setting the revision translation affected flag through the setter or
+   * through the field directly will always enforce it, which will be used by
+   * the entity storage to determine if the flag should be recomputed or the set
+   * value should be used instead.
+   * @see \Drupal\Core\Entity\ContentEntityStorageBase::populateAffectedRevisionTranslations()
+   *
+   * @param bool|null $affected
+   *   The flag value. A NULL value can be specified to reset the current value
+   *   and make sure a new value will be computed by the system.
+   *
+   * @return $this
+   */
+  public function setRevisionTranslationAffected($affected);
+
+  /**
+   * Checks whether the current translation is affected by the current revision.
+   *
+   * @return bool
+   *   TRUE if the entity object is affected by the current revision, FALSE
+   *   otherwise.
+   */
+  public function isRevisionTranslationAffected();
+
+  /**
+   * Checks if the revision translation affected flag value has been enforced.
+   *
+   * @return bool
+   *   TRUE if revision translation affected flag is enforced, FALSE otherwise.
+   *
+   * @internal
+   */
+  public function isRevisionTranslationAffectedEnforced();
+
+  /**
+   * Enforces the revision translation affected flag value.
+   *
+   * Note that this method call will not have any influence on the storage if
+   * the value of the revision translation affected flag is NULL which is used
+   * as an indication for the storage to recompute the flag.
+   * @see \Drupal\Core\Entity\ContentEntityInterface::setRevisionTranslationAffected()
+   *
+   * @param bool $enforced
+   *   If TRUE, the value of the revision translation affected flag will be
+   *   enforced so that on entity save the entity storage will not recompute it.
+   *   Otherwise the storage will recompute it.
+   *
+   * @return $this
+   *
+   * @internal
+   */
+  public function setRevisionTranslationAffectedEnforced($enforced);
+
+  /**
+   * Checks if untranslatable fields should affect only the default translation.
+   *
+   * @return bool
+   *   TRUE if untranslatable fields should affect only the default translation,
+   *   FALSE otherwise.
+   */
+  public function isDefaultTranslationAffectedOnly();
+
+}