fix google symptom backfilling behavior

[aysim319]

Actual Behavior:

When and outage happens, then some time later when the outage gets resolved and fixed the indicator grabs the missing data and assigns the missing dates as the same issue date as when the outage was fixed.

06/29 (38 dates): ['2024-05-19', '2024-05-20', '2024-05-21', '2024-05-22', '2024-05-23', '2024-05-24', '2024-05-25', '2024-05-26', '2024-05-27', '2024-05-28', '2024-05-29', '2024-05-30', '2024-05-31', '2024-06-01', '2024-06-02', '2024-06-03', '2024-06-04', '2024-06-05', '2024-06-06', '2024-06-07', '2024-06-08', '2024-06-09', '2024-06-10', '2024-06-11', '2024-06-12', '2024-06-13', '2024-06-14', '2024-06-15', '2024-06-16', '2024-06-17', '2024-06-18', '2024-06-19', '2024-06-20', '2024-06-21', '2024-06-22', '2024-06-23', '2024-06-24', '2024-06-25']

Expected behavior
The issue date should reflect as if the outage never happened and set the issue dates for when the missing date would be.

06/27 (21 dates): [ '2024-06-02', '2024-06-03', '2024-06-04', '2024-06-05', '2024-06-06', '2024-06-07', '2024-06-08', '2024-06-09', '2024-06-10', '2024-06-11', '2024-06-12', '2024-06-13', '2024-06-14', '2024-06-15', '2024-06-16', '2024-06-17', '2024-06-18', '2024-06-19', '2024-06-20', '2024-06-21', '2024-06-22']
06/28 (21 dates): ['2024-06-03', '2024-06-04', '2024-06-05', '2024-06-06', '2024-06-07', '2024-06-08', '2024-06-09', '2024-06-10', '2024-06-11', '2024-06-12', '2024-06-13', '2024-06-14', '2024-06-15', '2024-06-16', '2024-06-17', '2024-06-18', '2024-06-19', '2024-06-20', '2024-06-21', '2024-06-22', '2024-06-23']
06/29 (21 dates): ['2024-06-04', '2024-06-05', '2024-06-06','2024-06-07', '2024-06-08', '2024-06-09', '2024-06-10', '2024-06-11', '2024-06-12', '2024-06-13', '2024-06-14', '2024-06-15', '2024-06-16', '2024-06-17', '2024-06-18', '2024-06-19', '2024-06-20', '2024-06-21', '2024-06-22', '2024-06-23', '2024-06-24']

Context

Current behavior:

1. normally, 14 (15?) days per issue for smoothed and 21 (22?) days per issue for raw signals
2. if autopatching an outage, and the outage was n days long where n < 14 days, do 1)
3. if autopatching an outage, and the outage was n days long where n > 14 days, create n days for smoothed and n + 7 days for raw

[nmdefries]

closed by #1999