plotinit / plotselect not retained from one scan to another if axis is not identical.
In both flint (if you are lucky to have it) and in the behaviour of goto_... the selected plotted counter is arbitrary. If this is a feature, it would be very practical to change the behaviour - to keep the last plotinit(ed) / plotselect(ed) counter for the next scan whatever axis is the argument. Ideally, plotselect would "overwrite" the plotinit ...