Generated code suggestion can't be applied to the file correctly

Testing #6160

Initial code

preserveElements(indexes: number[]): void {
	this.preservedItems.clear();
	for (const index of indexes) {
		if (index >= 0 && index < this.items.length) {
			const item = this.items[index];
			this.preservedItems.add(item);
			if (!item.row) {
				this.insertItemInDOM(index);
			}
			this.updateItemInDOM(item, index);
		}
	}
}

new code

preserveElements(indexes: number[]): void {
	this.preservedItems.clear();
        let updatePreservedElements = false;
	for (const index of indexes) {
		if (index >= 0 && index < this.items.length) {
			const item = this.items[index];
			this.preservedItems.add(item);
			if (!item.row) {
				this.insertItemInDOM(index);
				updatePreservedElements = true;  
			}
			this.updateItemInDOM(item, index);
		}
	}

	if (updatePreservedElements) {  
            this.rerender();  
        }  
}

The generated code suggestion

        let updatePreservedElements = false;  
        for (const index of indexes) {  
            if (index >= 0 && index < this.items.length) {  
                const item = this.items[index];  
                this.preservedItems.add(item);  
                if (!item.row) {  
                    this.insertItemInDOM(index);  
                    updatePreservedElements = true;  
                }  
            }  
        }  

        if (updatePreservedElements) {  
            this.rerender();  
        }  

However when applied to the editor, the file was in a broken state