New user shown as having empty map

[mvl22]

User 2650 at : /admin/users/2650-[their-name]/locations and sometimes others (e.g. 2654) has an empty map.

The console shows a stack trace:

Uncaught TypeError: Cannot read property 'lat' of undefined
    at L.LatLngBounds.getNorth (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:22868)
    at L.LatLngBounds.getNorthWest (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:22848)
    at NewClass.getBoundsZoom (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:23420)
    at NewClass.fitBounds (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:23167)
    at LeafletMap.window.LeafletMap.LeafletMap.setCenter (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:30890)
    at new LeafletMap (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:30805)
    at HTMLDocument.<anonymous> (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:31318)
    at fire (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:3138)
    at Object.fireWith [as resolveWith] (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:3250)
    at Function.ready (application-9f98b08c740eb1bc501a37a32fafbd0d55e0051eade9b7eb8317fa48feb910bb.js:3462)

I suspect this might sometimes happen with a spammy registration, but either way, it shouldn't be causing a blank map with a JS error.