You'll question now whether it was ever the Bernstein Bears or if it's the Berenstain Bears.
Or whether Han shot first or...
You mean if it was Berenstein Bears vs Berenstain Bears. I've always felt that even if it had been Berenstein Bears, it was likely due to a printing mistake during early runs which is entirely possible. The official name for them were always Berenstain, as those are the names of the authors.