On Wikipedia the Wu experiment is explained by the sketch below
It is stated, that the mirrored experimental setup should include a coil with winding in opposite direction to the original coil, but the magnetic field from both coils should point in the same direction. That is strange to me because the induction of a magnetic field by accelerated electrons is by itself not a symmetric process. The observed beta decay in both setups follows the induced magnetic field.
What is wrong here?