Possible segfault with `git clone --mirror`

[Kostya M <kostya27@xxxxxxxxx>]

Git 2.31.1, reproduced on Ubuntu 20.04.01, and Arch Linux.

`git clone -c core.askPass=true --mirror --quiet --
https://github.com/kostya/myhtml.git myhtml`
Segmentation fault (core dumped)

If i remove --mirror argument, it works.
This command generated by crystal language package manager called shards.