Undo commit Fix _generate_run_path exporting gen kw parameters one by one

Author: jonathan-eq

src/ert/config/gen_kw_config.py

@@ -217,12 +217,17 @@ def write_to_runpath(
         real_nr: int,
         ensemble: Ensemble,
     ) -> dict[str, dict[str, float | str]]:
-        df = ensemble.load_parameters(self.group_name, real_nr, transformed=True).drop(
+        df = ensemble.load_parameters(self.name, real_nr, transformed=True).drop(
             "realization"
         )
 
         assert isinstance(df, pl.DataFrame)
-        data = {k: v for i in df.to_dicts() for k, v in i.items()}
+        if not df.width == 1:
+            raise ValueError(
+                f"GEN_KW {self.group_name}:{self.name} should be a single parameter!"
+            )
+
+        data = df.to_dicts()[0]
         return {self.group_name: data}
 
     def load_parameters(

src/ert/run_models/_create_run_path.py

@@ -110,18 +110,12 @@ def _generate_parameter_files(
     """
     exports: dict[str, dict[str, float | str]] = {}
 
-    exported_gen_kw_groups = set()
     for param in parameter_configs:
         # For the first iteration we do not write the parameter
         # to run path, as we expect to read if after the forward
         # model has completed.
         if param.forward_init and iteration == 0:
             continue
-        if isinstance(param, GenKwConfig):
-            if param.group_name in exported_gen_kw_groups:
-                continue
-            else:
-                exported_gen_kw_groups.add(param.group_name)
 
         export_values = param.write_to_runpath(Path(run_path), iens, fs)
         if export_values: