How to convert a Git shallow clone to a full clone?

Question

Follow-up of this so-question: if I have a shallow clone, how to fetch all older commits to make it a full clone?

Accepted Answer

EDIT: `git fetch --unshallow` now is an option (thanks Jack O'Connor).

You can run `git fetch --depth=2147483647`

From the docs on shallow:

The special depth 2147483647 (or 0x7fffffff, the largest positive number a signed 32-bit integer can contain) means infinite depth.

Solution