$ git clone -n https://src.fedoraproject.org/rpms/python-slackclient.git /var/lib/mock/f39-build-1731266-41251/root/chroot_tmpdir/scmroot/python-slackclient
Cloning into '/var/lib/mock/f39-build-1731266-41251/root/chroot_tmpdir/scmroot/python-slackclient'...
$ git fetch origin 8fa39303ce3815a5b1450a41b07917d1458383de:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-slackclient
 * [new ref]         8fa39303ce3815a5b1450a41b07917d1458383de -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8fa3930 3.23.1