$ git clone -n https://src.fedoraproject.org/rpms/rust-google-cloud-storage.git /var/lib/mock/f41-build-side-1-3110216-39405/root/chroot_tmpdir/scmroot/rust-google-cloud-storage
Cloning into '/var/lib/mock/f41-build-side-1-3110216-39405/root/chroot_tmpdir/scmroot/rust-google-cloud-storage'...
$ git fetch origin 60a0cbad18d135612b589d66f44266fbe4a7628e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-google-cloud-storage
 * [new ref]         60a0cbad18d135612b589d66f44266fbe4a7628e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60a0cba init: initial import (fixes rh#2307668)