GH2: get number of frames by looking at data.frameNumber

src/calng/corrections/Gotthard2Correction.py

@@ -346,7 +346,7 @@ class Gotthard2Correction(base_correction.BaseCorrection):
         gain_data = np.asarray(
             data_hash.get("data.gain")
         ).astype(np.uint8, copy=False)
-        num_frames = image_data.shape[0]
+        num_frames = len(data_hash.get("data.frameNumber"))
         if self.unsafe_get("workarounds.overrideInputAxisOrder"):
             expected_shape = self.kernel_runner.expected_input_shape(num_frames)
             image_data.shape = expected_shape