From 073cd69fb9a013bce76849b41e6f9f859336d390 Mon Sep 17 00:00:00 2001
From: jarbus <jarbus@tutanota.com>
Date: Fri, 1 Oct 2021 16:08:44 -0400
Subject: [PATCH 1/2] rem_vertex! bugfix

Resolves an issue where properties that point from the last node to the last node don't get updated with the new vertex number
---
 src/MetaGraphs.jl | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/MetaGraphs.jl b/src/MetaGraphs.jl
index e3ef01e..abf54d1 100644
--- a/src/MetaGraphs.jl
+++ b/src/MetaGraphs.jl
@@ -169,6 +169,17 @@ function rem_vertex!(g::AbstractMetaGraph, v::Integer)
                 set_prop!(g, v, key, val)
             end
         end
+
+        # Map property keys to new node values
+        if lastv in keys(lasteoutprops)
+            lasteoutprops[v] = lasteoutprops[lastv]
+            delete!(lasteoutprops, lastv)
+        end
+        if lastv in keys(lasteinprops)
+            lasteinprops[v] = lasteinprops[lastv]
+            delete!(lasteinprops, lastv)
+        end
+
         for n in outneighbors(g, v)
             set_props!(g, v, n, lasteoutprops[n])
         end

From bd6a8bdc35ad06a4ad5479f06a6dc1fc789d6c79 Mon Sep 17 00:00:00 2001
From: jarbus <jarbus@tutanota.com>
Date: Fri, 1 Oct 2021 18:15:22 -0400
Subject: [PATCH 2/2] adding test for #87

---
 test/metagraphs.jl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/metagraphs.jl b/test/metagraphs.jl
index 7de7bd1..2e9c38e 100644
--- a/test/metagraphs.jl
+++ b/test/metagraphs.jl
@@ -435,6 +435,12 @@ import Base64:
     @test get_prop(mga, 5, :prop) == "node5"
     @test get_prop(mga, 1, :prop) == "newnode1"
 
+    # test for 87
+    mdg = MetaDiGraph(2)
+    add_edge!(mdg, 2, 2)
+    rem_vertex!(mdg, 1)
+    @test neighbors(mdg, 1) == [1]
+    @test nv(mdg) == 1
 
 end