$ git clone -n https://src.fedoraproject.org/rpms/fail2ban.git /var/lib/mock/f41-build-side-1-2811280-32927/root/chroot_tmpdir/scmroot/fail2ban
Cloning into '/var/lib/mock/f41-build-side-1-2811280-32927/root/chroot_tmpdir/scmroot/fail2ban'...
$ git fetch origin f5c4652fbf39e280dc9332057fe6c8ef67003b3e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fail2ban
 * [new ref]         f5c4652fbf39e280dc9332057fe6c8ef67003b3e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5c4652 Add patch to deal with changes to OpenSSL log output.