Fix arbiter geometry stuff

src/calng/FrameSelectionArbiter.py

@@ -144,9 +144,6 @@ class BaseFrameSelectionArbiter(TrainMatcher.TrainMatcher):
         )
 
         self._geometry = None
-        geom_utils.subscribe_to_geometry_bound(
-            self, self.get("geometryDevice"), on_geometry=self._on_geometry
-        )
 
     def _guess_number_of_frames(self, sources):
         # TODO: robust frame deduction
@@ -184,6 +181,9 @@ class SimpleFrameSelectionArbiter(BaseFrameSelectionArbiter):
         self._initialize_kernel(
             self["frameSelection.kernelChoice"], self["frameSelection.kernelParameters"]
         )
+        geom_utils.subscribe_to_geometry_bound(
+            self, self.get("geometryDevice"), on_geometry=self._on_geometry
+        )
 
         if self["state"] != State.ERROR:
             self.start()  # Auto-start this type of matcher.
@@ -307,6 +307,9 @@ class AdvancedFrameSelectionArbiter(BaseFrameSelectionArbiter):
         self._validate_plan_and_update_schema(self["frameSelection.plan"])
         self._initialize_kernels()
         self._configure_decision(self["frameSelection.decision"])
+        geom_utils.subscribe_to_geometry_bound(
+            self, self.get("geometryDevice"), on_geometry=self._on_geometry
+        )
 
         if self["state"] != State.ERROR:
             self.start()  # Auto-start this type of matcher.
@@ -517,5 +520,5 @@ class AdvancedFrameSelectionArbiter(BaseFrameSelectionArbiter):
                     kernel.reconfigure(conf[kernel_prefix])
 
     def _on_geometry(self, geometry):
-        for kernel in self._selection_kernels.values()
+        for kernel in self._selection_kernels.values():
             kernel.on_new_geometry(geometry)