| 1 | | It happens on a second save (when there is already data to be validated) |
| 2 | | |
| 3 | | On this line: "if row_data in seen_data:", because row_data contains a list and seen_data is a set (row_data: (1, [1, 1]) / seen_data: set()) |
| 4 | | |
| 5 | | Example to reproduce: |
| 6 | | |
| 7 | | models: |
| 8 | | {{{#!python |
| 9 | | class Map(models.Model): |
| 10 | | name = models.CharField(_('name'), max_length=128) |
| 11 | | |
| 12 | | |
| 13 | | class MapSpot(models.Model): |
| 14 | | map = models.ForeignKey('body.Map', related_name='spots') |
| 15 | | position = ArrayField(models.IntegerField(), size=2) |
| 16 | | |
| 17 | | class Meta: |
| 18 | | unique_together = [('map', 'position')] |
| 19 | | }}} |
| 20 | | |
| 21 | | admin: |
| 22 | | {{{#!python |
| 23 | | class MapSpotInline(admin.TabularInline): |
| 24 | | model = MapSpot |
| 25 | | extra = 0 |
| 26 | | |
| 27 | | |
| 28 | | @admin.register(Map) |
| 29 | | class MapAdmin(admin.ModelAdmin): |
| 30 | | inlines = [MapSpotInline] |
| 31 | | }}} |