Lachlan O'Dea fixed a resume problem: "If I set CURLOPT_RESUME_FROM, perform

an HTTP download, then reset CURLOPT_RESUME_FROM to 0, the next download still
has a Range header with a garbage value." bug report #820502

lib/url.c

@@ -2935,6 +2935,8 @@ static CURLcode CreateConnection(struct SessionHandle *data,
       conn->bits.rangestringalloc = TRUE; /* mark range string allocated */
       conn->bits.use_range = TRUE;        /* enable range download */
     }
+    else
+      conn->bits.use_range = FALSE; /* disable range download */
 
     *in_connect = conn;      /* return this instead! */