Date accuracy on older edits is incorrect

[peolic]

The date accuracy migration added in #810 (42_date_columns.up.sql) does not migrate the edit data.

Example from StashDB: https://stashdb.org/edits/140cf443-3985-4375-a20b-965a9dbbb82b (the input was '1996')
Examples from my old dev database. I assume NULL date accuracy is DAY here.

SELECT /* e.id, */
    target_type,
    data['new_data'][d.field] AS old_date, data['old_data'][d.field||'_accuracy'] AS old_da,
    data['new_data'][d.field] AS new_date, data['new_data'][d.field||'_accuracy'] AS new_da
FROM edits e
JOIN (
    SELECT id, (CASE WHEN target_type = 'SCENE' THEN 'date' WHEN target_type = 'PERFORMER' THEN 'birthdate' END) field
    FROM edits
    WHERE target_type in ('SCENE', 'PERFORMER')
) d ON d.id = e.id
WHERE data['new_data'] ? d.field OR data['old_data'] ? d.field
ORDER BY e.created_at DESC, e.id ASC;

target_type	old_date	old_da	new_date	new_da
SCENE	"2022-01-01"	"DAY"	"2022-01-01"	"DAY"
PERFORMER	"1995-06-13"		"1995-06-13"	"DAY"
SCENE	"2022-01-01"	"DAY"	"2022-01-01"	"YEAR"
SCENE	"2022-01-01"		"2022-01-01"	"YEAR"
PERFORMER	"1986-01-01"		"1986-01-01"	"YEAR"
PERFORMER	"1985-12-01"	"MONTH"	"1985-12-01"	"DAY"
PERFORMER	"1985-12-01"	"MONTH"	"1985-12-01"	"DAY"
PERFORMER	"1992-03-01"	"DAY"	"1992-03-01"	"MONTH"
PERFORMER	"1992-03-15"		"1992-03-15"	"DAY"
PERFORMER	"1985-12-01"		"1985-12-01"	"MONTH"
SCENE	"2021-10-09"		"2021-10-09"
PERFORMER	"1990-01-01"		"1990-01-01"	"YEAR"