Hotfix: Gotthard2Assembler should guess new preview interleave types correctly

src/calng/Gotthard2Assembler.py

@@ -82,9 +82,9 @@ class Gotthard2Assembler(TrainMatcher.TrainMatcher):
         # figure out assembly mode and set handler
         if self.get("assemblyMode") == "auto":
             _, _, source_output = self._primary_source.partition(":")
-            if source_output.lower().endswith("streak"):
+            if "streak" in source_output.lower():
                 self.set("assemblyMode", "interleave2d")
-            elif source_output.lower().endswith("sums"):
+            elif "sums" in source_output.lower():
                 self.set("assemblyMode", "sum")
             else:
                 self.set("assemblyMode", "interleave1d")