--- a/mercurial/progress.py	Thu May 05 16:29:31 2016 +0200
+++ b/mercurial/progress.py	Fri May 06 17:53:06 2016 -0500
@@ -163,7 +163,7 @@
         sys.stderr.flush()
 
     def clear(self):
-        if not shouldprint(self.ui):
+        if not self.printed or not self.lastprint or not shouldprint(self.ui):
             return
         sys.stderr.write('\r%s\r' % (' ' * self.width()))
         if self.printed: