Fix faulty skip MAGICC logic

workflow.py

@@ -30,21 +30,26 @@ def main(df: pyam.IamDataFrame) -> pyam.IamDataFrame:
 
     # Run the validation and region-processing
     dsd = DataStructureDefinition(here / "definitions")
-    processors = [RegionProcessor.from_directory(path=here / "mappings", dsd=dsd)]
+    region_processor = RegionProcessor.from_directory(
+        path=here / "mappings",
+        dsd=dsd,
+    )
     if FOUND_MAGICC:
-        processors.append(
-            MAGICCProcessor(
-                run_type="complete",
-                magicc_worker_number=8,
-            )
+        magicc_processor = MAGICCProcessor(
+            run_type="complete",
+            magicc_worker_number=8,
         )
         try:
-            return process(df, dsd, processor=processors)
+            return process(
+                df,
+                dsd,
+                processor=[region_processor, magicc_processor],
+            )
         except Exception as e:
             log.warning(
                 (
                     "Error with MAGICC processing, repeat processing without MAGICC, "
                     f"details: {e}"
                 )
             )
-    return process(df, dsd, processor=processors)
+    return process(df, dsd, processor=region_processor)