$ git clone -n https://src.fedoraproject.org/rpms/python-pingouin.git /var/lib/mock/f41-build-side-1-2906518-34722/root/chroot_tmpdir/scmroot/python-pingouin
Cloning into '/var/lib/mock/f41-build-side-1-2906518-34722/root/chroot_tmpdir/scmroot/python-pingouin'...
$ git fetch origin fc325e6137f65e4b6d05bddd6e15f0b144b5c4c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pingouin
 * [new ref]         fc325e6137f65e4b6d05bddd6e15f0b144b5c4c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc325e6 Update to 0.5.5 (close RHBZ#2309704)