Drupal 8 Node Lock Issue

+1
I can confirm that this is a reproduceable issue that needs to be fixed.

It is impacting basic Revisions functionality now in core.

@Vivek, can you please also include screenshots here?

Possible custom code failure, lowering priority

Steps used to produce this issue:
1. Create a content with revisions (Moderation) enabled.
2. Create more revisions by editing and saving fields.
3. Now choose any previous revision to revert and save.
4. Now edit the node and save again.
Now there will be message:
"The content has either been modified by another user, or you have already submitted modifications. As a result, your changes cannot be saved."
Solution
I found out that validation inside this in getting failed on reverting.
core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityChangedConstraintValidator.php

So, I have update the Node time changed while reverting inside this file.
core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityChangedConstraintValidator.php

Any suggestion and other ways are welcome. thanks.

Patch updated.

I am moving this issue to drupal Core as this is exists there and needs to be resolved.
While using Node revert using workbench modulations it is generated the isssue as explained.

Timestamp updates when revision is saved again.

Any suggestions and ways to do are welcome. thanks

+++ b/core/modules/node/src/Form/NodeRevisionRevertForm.php
@@ -111,8 +111,8 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
+    $this->revision->set('changed', REQUEST_TIME);

Use the datetime.time service getRequestTime() method.

+++ b/core/modules/node/src/Form/NodeRevisionRevertForm.php
@@ -111,8 +111,8 @@ public function submitForm(array &$form, FormStateInterface $form_state) {
-

Undo this change.

Please check this patch it is working fine for me

$this->revision = $this->prepareRevertedRevision($this->revision, $form_state);
+	$this->revision->changed = \Drupal::time()->getRequestTime();
     $this->revision->revision_log = t('Copy of the revision from %date.', ['%date' => $this->dateFormatter->format($original_revision_timestamp)]);
     $this->revision->save();

Indentation wrong

I have changed in next patch

This is possibly a duplicate of #2848508: Reverting a revision causes validation error on edit form submit ?

Closing this as duplicate of #2848508: Reverting a revision causes validation error on edit form submit
Feel free to re-open it