Change output version to EXDF-v1.3 if file is mislabeled as v1.2

src/exdf/data_reduction/red_writer.py

@@ -68,6 +68,15 @@ class ReduceWriter(SourceDataWriter):
             raise ReduceInitError('Currently input files are required to be '
                                   'EXDF-v1.0+')
 
+        elif input_version == Version('1.2') and data.control_sources:
+            # Check for mislabeled EXDF-v1.3 files.
+            ctrl_src = next(iter(control_sources))
+
+            if data[ctrl_src, ctrl_src.one_key()].attributes():
+                input_version = Version('1.3')
+                self.log.warning('Detected EXDF-v1.3 file with attributes '
+                                 'mislabeled as EXDF-v1.2')
+
         self.log.debug(f'Input data EXDF version {input_version}')
 
         if version == 'same':