Adding an operator to the Undo History list

Commonly, when a user executes an operator in Blender, this event is automatically recorded in the "Undo History" list so that in the future he can quickly undo the execution of the operator (Ctrl + z) or execute it again - redo the operator execution (Ctrl + shift + z). However, this does not always work.

Read more: https://b3d.interplanety.org/en/adding-an-operator-to-the-undo-history-list/