fix pattern stop location map rendering

Author: miles-grant-ibigroup

Diff for: lib/editor/components/map/PatternStopsLayer.js

@@ -60,7 +60,7 @@ export default class PatternStopsLayer extends Component<Props> {
       patternStops.findIndex(ps => ps.id === activePatternStop.id) === -1
     let cpIndex = 0
     let psIndex = 0
-    const patternStopsWithControlPointIndexes = patternStops.filter(ps => ps.locationId !== null || ps.locationGroupId !== null)
+    const patternStopsWithControlPointIndexes = patternStops.filter(ps => ps.locationId === null || ps.locationGroupId === null)
     // Associate pattern stops with control point indices.
     while (controlPoints[cpIndex]) {
       if (controlPoints[cpIndex].pointType === POINT_TYPE.STOP) {