Add save_trajectories option to conditional.

Author: lohedges

src/somd2/runner/_base.py

@@ -124,7 +124,8 @@ def __init__(self, system, config):
 
         # Flag whether frames are being saved.
         if (
-            self._config.frame_frequency > 0
+            self.config.save_trajectories
+            and self._config.frame_frequency > 0
             and self._config.frame_frequency <= self._config.runtime
         ):
             self._save_frames = True