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The Undo button allows you to go back to the previous state.
Important: Only a single action can be undone. This button is related strictly to scheduling changes (only date changes can be reverted by this button).
Other changes like summary, status or assignee change cannot be undone by this button.
Undo actions
The Undo button is grayed out by default. It becomes available when the user performs an operation that can be undone, that is a date change. Performing an undo operation OR reloading the page makes the Undo button grayed out again.
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