Danbooru and Anime Pictures sources do not initialize DBs from 0 if --start-from argument is not provided

[Nekidev]

Issue

Neither Danbooru nor Anime Pictures initialize their DB if the --start-from argument is not provided.

To initialize Anime Pictures:

python manage.py saucesupdate --source "Anime Pictures" --start-from 0

To initialize Danbooru:

python manage.py saucesupdate --source Danbooru --start-from a1

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Progress

• Patch Anime Pictures
• Patch Danbooru