Gap in filling closed areas near first/last node

[Zverikk]

1. Download this way: ​https://www.openstreetmap.org/way/660110703
2. Optionally (for extra effect) download all referring relations and their members.
3. Zoom in closer to the top-left part.

One segment of inner (and outer, if you have it) filling disappears.

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2019-01-01 14:07:43 +0100 (Tue, 01 Jan 2019)
Build-Date:2019-01-02 02:32:31
Revision:14626
Relative:URL: ^/trunk

Identification: JOSM/1.5 (14626 en) Mac OS X 10.14.2
OS Build number: Mac OS X 10.14.2 (18C54)
Memory Usage: 904 MB / 1820 MB (470 MB allocated, but free)
Java version: 1.8.0_191-b12, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: Display 724840401 2560x1440
Maximum Screen Size: 2560x1440
VM arguments: [-Djava.library.path=/Applications/JOSM.app/Contents/MacOS, -DLibraryDirectory=${HOME}/Library, -DDocumentsDirectory=${HOME}/Documents, -DApplicationSupportDirectory=${HOME}/Library/Application Support, -DCachesDirectory=${HOME}/Library/Caches, -DSandboxEnabled=false, -Dapple.laf.useScreenMenuBar=true, -Dcom.apple.macos.use-file-dialog-packages=true, -Dcom.apple.macos.useScreenMenuBar=true, -Dcom.apple.mrj.application.apple.menu.about.name=JOSM, -Dcom.apple.smallTabs=true]
Dataset consistency test: No problems found