How to add child without updating updated_at in right trees

[znz]

In after_save :move_to_new_parent, Movecalls update_all with updated_at = :timestamp.

But I do not want to update another tree's items.

For example:

Before:

• 1
  • 3
• 2
  • 7
• 4
  • 6

After:

• 1
  • 3
• 2
  • 7
  • 8 (Added)
• 4
  • 6

Update updated_at of 2,8 are acceptable, but updated_at of 4,6 are not desired.

How to stop to update update_at?

[stale[bot]]

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