From 4eda983cf4de6cb86ca42f04ebfa571f16d69919 Mon Sep 17 00:00:00 2001
From: Hornwitser <github@hornwitser.no>
Date: Sat, 12 Oct 2019 02:01:46 +0200
Subject: [PATCH] Port filter out lower levels when syncing research

Fix the next level of an infinite research getting updated with the
progress of the previous level from other nodes in the cluster by
filtering out infinite researches with a lower level than the local
level.

This is a port of 075d54f.
---
 CHANGELOG.md                        | 2 ++
 sharedPlugins/researchSync/index.js | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c35883c0..de87842b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -35,6 +35,8 @@ Version 1.2.2
   Object prototype property in researchSync.
 - Fixed progress of a current infinite tech carrying over to the next one
   when researching it and another node completes it in researchSync.
+- Fixed progress of a previous infinite tech from another node being applied
+  to the current one in researchSync.
 
 
 Version 1.2.1
diff --git a/sharedPlugins/researchSync/index.js b/sharedPlugins/researchSync/index.js
index 37fb7a0d..1407b5d6 100644
--- a/sharedPlugins/researchSync/index.js
+++ b/sharedPlugins/researchSync/index.js
@@ -253,6 +253,12 @@ class ResearchSync {
 			}
             if (isNaN(cluster_techs[name].progress))
                 continue
+
+			// Do not update progress for infinite techs with a local level that's higher.
+			if (tech.infinite && tech.level > cluster_techs[name].level) {
+				continue;
+			}
+
             if (tech.progress < cluster_techs[name].progress)
                 result[name] = cluster_techs[name]
         }