Ohms law in solar panel
Your confusion stems from how soar panels produce electric current and from mixing two different concepts.
They can produce no more than their rated current, even if you make a short circuit.
This has nothing to do with Ohm's law (except for the internal resistance of the panels), but I see that you lack a basic understanding of how two power sources interact when connected in series or parallel.
Ohm's law ignores the internal resistance and the maximum current capability of a power source like battery, solar panel, power supply for the sake of simplicity because it only focuses on the relationship between the voltage and current ACROSS and THROUGH the RESISTANCE/load (this is the key point here).
The tiny detail that confuses you is that you THINK you have DOUBLE the voltage across that resistance, but the voltage across that resistance will not increase when you add another panel in series if that resistance was ALREADY drawing the maximum amount of current a single panel can give.
Remember the basics about batteries: to increase voltage, you connect batteries in series; to increase CURRENT you connect batteries in parallel, but the voltage remains the same.

A solar cell can only push a certain number of electrons when exposed to sunlight. It can be considered like a "current source" with a limited voltage.
A current source will give you the same current whether you connect some resistance at its ends or if you short it out.
However, if that resistance/load limits the current through it because of insufficient voltage across it, you can double the current if you connect 2 panels in series to raise the voltage and push more current through that load/resistance, but, again, that current cannot go above the maximum (or short-circuit) rated current of the panel.  

If you want more current, you add a panel in parallel.
If you want more voltage, you connect panels in series.
If you want both higher voltage and more current, you need to connect 2 panels in parallel with each other, and then in series with another 2 panels that are connected in parallel with each other.  

So, once again, you need to learn some basics about series and parallel battery connections, and read carefully the specifications on the power sources like solar panels.
You are jumping all over the place without connecting the dots.