update Netgen, memcpy check for num=0

JSchoeberl · JSchoeberl · commit 6f16aa5a23e3 · 2024-11-25T17:28:52.000+01:00
diff --git a/external_dependencies/netgen b/external_dependencies/netgen
@@ -1 +1 @@
-Subproject commit 22797971f6951c2df806d79288049bd6a15e67d7
+Subproject commit a86d231714b61d8d691cdc2e89c0f2831be34a18
