It's up to you to make sure you make this option available. This is all related to the workflow and the status/resolution options you want to configure for your desired outcome.
Basically, you could set up a workflow having a deferred status or you could set up a transition to a closed status and indicate the fact that an issue gets deferred through setting a deferred value as the resolution of the closed issue.
Check the documentation on configuring workflows first, it will give you a good starting point.
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