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@@ -15,10 +15,11 @@ export class UndoManager {
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const transform = this._transform;
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const sizeof = stack.length - 1;
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for (let i = sizeof; i >= 0; i--) {
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- const redo = transform.transfer(stack[i].redo, command)[1];
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- const undo = transform.transfer(stack[i].undo, command)[1];
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- stack[i].redo = redo;
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- stack[i].undo = undo;
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+ const pair1 = transform.transfer(stack[i].redo, command);
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+ const pair2 = transform.transfer(stack[i].undo, pair1[1]);
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+ stack[i].redo = pair1[0];
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+ stack[i].undo = pair2[0];
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+ command = pair2[1];
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}
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}
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