TypeError: ways[(i + 1)] is null

[deevroman]

https://beakerboy.github.io/OSMBuilding/index.html?type=relation&id=5428216

19:42:01.285 Uncaught (in promise) TypeError: ways[(i + 1)] is null
    combineWays https://beakerboy.github.io/OSMBuilding/src/extras/BuildingShapeUtils.js:72
    buildShape https://beakerboy.github.io/OSMBuilding/src/multibuildingpart.js:30
    BuildingPart https://beakerboy.github.io/OSMBuilding/src/buildingpart.js:81
    MultiBuildingPart https://beakerboy.github.io/OSMBuilding/src/multibuildingpart.js:8
    addParts https://beakerboy.github.io/OSMBuilding/src/building.js:180
    Building https://beakerboy.github.io/OSMBuilding/src/building.js:84
    create https://beakerboy.github.io/OSMBuilding/src/building.js:46
    init https://beakerboy.github.io/OSMBuilding/src/index.js:56
    <anonymous> https://beakerboy.github.io/OSMBuilding/src/index.js:196
BuildingShapeUtils.js:72:24

[Beakerboy]

This is related to #42

[Beakerboy]

Fixed.