Merge branch 'release/3.51.2'

Author: wolph

progressbar/__about__.py

@@ -19,7 +19,7 @@
 long running operations.
 '''.strip().split())
 __email__ = 'wolph@wol.ph'
-__version__ = '3.51.1'
+__version__ = '3.51.2'
 __license__ = 'BSD'
 __copyright__ = 'Copyright 2015 Rick van Hattem (Wolph)'
 __url__ = 'https://github.com/WoLpH/python-progressbar'

progressbar/bar.py

@@ -729,10 +729,16 @@ def start(self, max_value=None, init=True):
         if self.prefix:
             self.widgets.insert(0, widgets.FormatLabel(
                 self.prefix, new_style=True))
+            # Unset the prefix variable after applying so an extra start()
+            # won't keep copying it
+            self.prefix = None
 
         if self.suffix:
             self.widgets.append(widgets.FormatLabel(
                 self.suffix, new_style=True))
+            # Unset the suffix variable after applying so an extra start()
+            # won't keep copying it
+            self.suffix = None
 
         for widget in self.widgets:
             interval = getattr(widget, 'INTERVAL', None)