squash: typo

Author: happz

tmt/base/plan.py

@@ -488,10 +488,12 @@ def _environment_from_fmf(self) -> Environment:
 
         return Environment.from_fmf_keys(
             raw_fmf_environment_files=tmt.utils.normalize_string_list(
-                f'{self.name}:environment-file', self.node.get("environment-file"), self._logger
+                f'{self.name}:environment-file',
+                self.node.get("environment-file") or [],
+                self._logger,
             ),
             raw_fmf_environment=tmt.utils.normalize_string_dict(
-                f'{self.name}:environment', self.node.get('environment'), self._logger
+                f'{self.name}:environment', self.node.get('environment') or {}, self._logger
             ),
             file_root=Path(self.node.root) if self.node.root else None,  # pyright: ignore[reportUnknownVariableType, reportUnknownArgumentType]
             logger=self._logger,