Update gap/attributes/attr.gi

Co-authored-by: James Mitchell <[email protected]>

gap/attributes/attr.gi

@@ -796,7 +796,7 @@ function(S, a)
   for e in Idempotents(R) do
     s := RightGreensMultiplierNC(S, a, e) * e;
     for f in Idempotents(L) do
-      Add(inverses, f * s * e);
+      Add(inverses, f * s);
     od;
   od;
   return inverses;