$ git clone -n https://src.fedoraproject.org/rpms/usbguard.git /var/lib/mock/f40-build-1922718-25101/root/chroot_tmpdir/scmroot/usbguard
Cloning into '/var/lib/mock/f40-build-1922718-25101/root/chroot_tmpdir/scmroot/usbguard'...
$ git fetch origin b46802291b3421f1f9bdb9aa6c599e21d97f76ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/usbguard
 * [new ref]         b46802291b3421f1f9bdb9aa6c599e21d97f76ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b468022 Rebase to 1.1.3 selinux package policy update   Resolves: rhbz#2271330