Fix filtering for bumped pairs

freqtrade/edge/edge_positioning.py

@@ -281,8 +281,8 @@ class Edge:
         #
         # Removing Pumps
         if self.edge_config.get('remove_pumps', False):
-            results = results.groupby(['pair', 'stoploss']).apply(
-                lambda x: x[x['profit_abs'] < 2 * x['profit_abs'].std() + x['profit_abs'].mean()])
+            results = results[results['profit_abs'] < 2 * results['profit_abs'].std()
+                              + results['profit_abs'].mean()]
         ##########################################################################
 
         # Removing trades having a duration more than X minutes (set in config)