From b02b2098356d3f1a39a1a91a3134548364252ddb Mon Sep 17 00:00:00 2001
From: Oliver Hamlet <oliver@ortham.io>
Date: Sat, 31 Dec 2022 13:42:55 +0000
Subject: [PATCH] Avoid unnecessary vertex equality comparison

Just avoid ever comparing a vertex to itself.
---
 src/api/sorting/plugin_graph.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/api/sorting/plugin_graph.cpp b/src/api/sorting/plugin_graph.cpp
index fe3272e5..88f1ea20 100644
--- a/src/api/sorting/plugin_graph.cpp
+++ b/src/api/sorting/plugin_graph.cpp
@@ -576,12 +576,13 @@ void PluginGraph::AddSpecificEdges() {
     const auto& vertex = *vit;
     const auto& plugin = GetPlugin(vertex);
 
-    for (vertex_it vit2 = vit; vit2 != vitend; ++vit2) {
+    for (vertex_it vit2 = std::next(vit); vit2 != vitend; ++vit2) {
       const auto& otherVertex = *vit2;
       const auto& otherPlugin = GetPlugin(otherVertex);
 
-      if (plugin.IsMaster() == otherPlugin.IsMaster())
+      if (plugin.IsMaster() == otherPlugin.IsMaster()) {
         continue;
+      }
 
       const auto isOtherPluginAMaster = otherPlugin.IsMaster();
       vertex_t childVertex = isOtherPluginAMaster ? vertex : otherVertex;