Several months ago I submitted an article to a journal with good reputation. Then I received two different reports. One was asking for minor revision. However, the second one overlooked at the content of the manuscript, and confused it with several previously known results. The editor, seeming the latter report, had to reject it (I would do the same in his position).
However, mistakes happen. The report of the second referee was completely wrong (from a math point of view, hence nothing subjective). I wrote a long reply to Editor's decision letter explaining point by point why the second referee was incorrect. This happened 1.5 months ago, I had a confirmation (from the editorial system) that the editor received the message, but I never received a reply.
Meanwhile, I just submitted it to another journal. But what should I do? Just ignore everything and go ahead? I mean, this is like getting a non-sense rejection..