RF: Copy/re-create data freme when filtering by subjects. Avoids pandas copy

warning in subsequent operations

funpack/importing/filter.py

@@ -372,7 +372,7 @@ def filterSubjects(data,
         if mask is None: mask           = ~exclmask
         else:            mask[exclmask] = 0
 
-    if mask is not None: return data.loc[mask, :]
+    if mask is not None: return data.drop(data.index[mask])
     else:                return data