$ git clone -n https://src.fedoraproject.org/rpms/python-bash-kernel.git /var/lib/mock/f41-build-1274733-23141/root/chroot_tmpdir/scmroot/python-bash-kernel
Cloning into '/var/lib/mock/f41-build-1274733-23141/root/chroot_tmpdir/scmroot/python-bash-kernel'...
$ git fetch origin 1ad2c78add343dff0312517bbf4ac5f6a37f7fb3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-bash-kernel
 * [new ref]         1ad2c78add343dff0312517bbf4ac5f6a37f7fb3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ad2c78 Add patch to use filetype instead of imghdr