From 7b441ab766b18b52a7556cf183b0c0118442f07f Mon Sep 17 00:00:00 2001
From: Quincy Morgan <quincy.morgan@icloud.com>
Date: Thu, 9 May 2019 18:06:40 -0400
Subject: [PATCH] Don't flag unsquare buildings connected to building
 multipolygons

---
 modules/validations/unsquare_way.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/modules/validations/unsquare_way.js b/modules/validations/unsquare_way.js
index 139af01cb..68ed4403f 100644
--- a/modules/validations/unsquare_way.js
+++ b/modules/validations/unsquare_way.js
@@ -43,7 +43,12 @@ export function validationUnsquareWay() {
         var hasConnectedSquarableWays = nodes.some(function(node) {
             return graph.parentWays(node).some(function(way) {
                 if (way.id === entity.id) return false;
-                return isBuilding(way, graph);
+                if (isBuilding(way, graph)) return true;
+                return graph.parentRelations(way).some(function(parentRelation) {
+                    return parentRelation.isMultipolygon() &&
+                        parentRelation.tags.building &&
+                        parentRelation.tags.building !== 'no';
+                });
             });
         });
         if (hasConnectedSquarableWays) return [];