BF: Deal with None CF properly after previous modifications.

simseq.py

@@ -279,7 +279,7 @@ def splitConcurrentRephase(seqBlock):
 
         else:  # If just one value of rephase keep as is.
             seqBlockOut.append(block)
-            if block.axis is None:
+            if block.axis[0] is None:
                 axisOrderOut.append(None)
             else:
                 axisOrderOut.append(int(block.axis[0]))