Here is a current output profile, captured with a scope and current probe after a sudden mains turn-ON of the PSU.
Again, voltage set to 0.0 and current set to 5.0
There are two spikes in the current, >12.7A
Well, as long as we know, not to turn the PSU ON while it is connected to a circuit, all should be OK
But it would be nice, if Keysight could fix this problem through a FW update.