Prevent crash when reloading LIGHT_GAIN #108
Merged
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Previously, if set_light_properties were called a second time on a detector with a different number of optical channels as on the first call, loading of LIGHT_GAIN could crash as the "default" for detprop.get would be np.full(OP_CHANNEL_EFFICIENCY.shape, LIGHT_GAIN), where LIGHT_GAIN is an array with all of the channels of the first call, so the broadcast into OP_CHANNEL_EFFICIENCY.shape fails.
This was causing larnd-display to fail when configured with more than one geometry, since set_light_properties was getting called for both detectors.