fsobject.fsobject: Update previews when file changes

ranger/fsobject/fsobject.py

@@ -181,6 +181,7 @@ def load(self):
 		filesystem and caches it for later use
 		"""
 
+		self.fm.update_preview(self.path)
 		self.loaded = True
 
 		# Get the stat object, either from preload or from [l]stat