That cannot be correct. When you delete all partitions, then select Standard followed by create them automatically, it will not create a /home partiton. Only have the OS drive plugged in when doing the OS install.I did select the standard partitioning setting, and it automatically added the /home partition, which I deleted.
I have tested this many times, so it seems you are skipping a step or not doing it in correct order. If you have to delete the /home partition, then something is amiss.
Did you view the screen shots? They show how things should look at each step.