From c87c64933fcb2aadbbf6a36f7300fd78bc54dabf Mon Sep 17 00:00:00 2001
From: Michael Young <mct25@st-andrews.ac.uk>
Date: Wed, 12 Apr 2023 15:03:48 +0100
Subject: [PATCH] DigraphAbsorptionProbabilities: add note about quotients

---
 gap/attr.gi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gap/attr.gi b/gap/attr.gi
index 04f13c87a..e76c728ca 100644
--- a/gap/attr.gi
+++ b/gap/attr.gi
@@ -217,6 +217,7 @@ function(D)
   fi;
 
   # Find the "sink components" (components from which there is no escape)
+  # We could use QuotientDigraph and DigraphSinks here, but this avoids copying.
   is_sink_comp := ListWithIdenticalEntries(Length(scc.comps), true);
   transient_vertices := [];
   for i in [1 .. Length(scc.comps)] do