try again with further tweaks

ntamas · ntamas · commit 4b2bfbe8459c · 2020-04-28T13:10:19.000+02:00
diff --git a/vendor/source/igraph b/vendor/source/igraph
@@ -1 +1 @@
-Subproject commit 5785791853de2f9653161e5f5f035256f76dddb0
+Subproject commit 0afacadd854aefc3db9758a7a46863b4d851aacd
