cleangeometries & round_coordinates shouldn't return duplicate coordinates

src/c3nav/mapdata/management/commands/cleangeometries.py

@@ -0,0 +1,19 @@
+from django.core.management.base import BaseCommand
+from django.db import transaction
+
+from c3nav.mapdata.models.geometry.base import GeometryMixin
+from c3nav.mapdata.utils.models import get_submodels
+
+
+class Command(BaseCommand):
+    help = 'clean-up/fix all geometries in the database'
+
+    def handle(self, *args, **options):
+        with transaction.atomic():
+            for model in get_submodels(GeometryMixin):
+                for instance in model.objects.all():
+                    old_geom = instance.geometry.wrapped_geojson
+                    instance.save()
+                    instance.refresh_from_db()
+                    if instance.geometry.wrapped_geojson != old_geom:
+                        print('Fixed %s' % instance)