What happens when someone uploads 10 documents at a time?

### When did this happen?
Friday, February 7th, 1pm

### Where did this happen?
- [x] Production
- [ ] Staging
- [ ] On a branch: *list the branch here*

### What were you trying to do when this happened?
Jo was uploading a batch of 8 documents. Which then triggered 16 builds, one for each document upload and then one for each edit of the document page. 15 builds failed with 503s, but luckily one got through and complete.

### Screenshots

janis-buildsAPP 1:26 PM
PRODUCTION -- Fri Feb 7 19:26:12 UTC 2020 f12294 -- :x: There was a problem building janis. Check the logs for details. https://s3.amazonaws.com/janis-austin-gov-production/_reserved/logs/f122947843332fa8f2d8c48d5328e9f8fb58bb3f736aeb2cb007a40435404822.txt

1:26
PRODUCTION -- Fri Feb 7 19:26:12 UTC 2020 f0c3ed -- :x: There was a problem building janis. Check the logs for details. https://s3.amazonaws.com/janis-austin-gov-production/_reserved/logs/f0c3edaaec9443697a0ef05d0267a40c0a599998804b8b6af7d410cc6927d417.txt
1:26
PRODUCTION -- Fri Feb 7 19:26:12 UTC 2020 d43ecc -- :x: There was a problem building janis. Check the logs for details. https://s3.amazonaws.com/janis-austin-gov-production/_reserved/logs/d43eccac1b8512730ec17fe629b3eacccce2bcb9079cc1a7169294c825cd4818.txt
1:26
PRODUCTION -- Fri Feb 7 19:26:13 UTC 2020 6e5fa8 -- :x: There was a problem building janis. Check the logs for details. https://s3.amazonaws.com/janis-austin-gov-production/_reserved/logs/6e5fa8b62630f3956eb01fd20a77159b0b9471b861986bdc2c888a4b29cb0023.txt
1:26
PRODUCTION -- Fri Feb 7 19:26:14 UTC 2020 fc8e04 -- :x: There was a problem building janis. Check the logs for details. https://s3.amazonaws.com/janis-austin-gov-production/_reserved/logs/fc8e048eed2b459c2f5c421203e335b4ca6d84fcdcc3895fdb951776d1bfc157.txt
1:26
PRODUCTION -- Fri Feb 7 19:26:15 UTC 2020 339220 -- :x: There was a problem building janis. Check the logs for details. https://s3.amazonaws.com/janis-austin-gov-production/_reserved/logs/339220588617328a6264039798fa07a1fecdec0b59e7966dd055cdc914d634cd.txt
1:26
PRODUCTION -- Fri Feb 7 19:26:16 UTC 2020 cb67a1 -- :x: There was a problem building janis. Check the logs for details. https://s3.amazonaws.com/janis-austin-gov-production/_reserved/logs/cb67a147769303d86ac708d70c3086494aaf4bbfc36f8713f74d2f2aaa5948d2.txt
1:26
PRODUCTION -- Fri Feb 7 19:26:18 UTC 2020 52d6ac -- :white_check_mark: The build has been deployed. -- Build Duration: 7 minutes and 9 seconds elapsed. -- https://s3.amazonaws.com/janis-austin-gov-production/_reserved/logs/52d6ac24c9481332e621663576e403a1fda2c5d6c90e0220d434b74ab5f06b47.txt

No source files or tests are named. Start by reviewing the upload and document-edit build triggers, then inspect the linked production build logs for the 503 failures. Done should include a defined approach for handling batch uploads without spawning failing duplicate builds, along with verification that the batch completes successfully.

Written by the indexing model from the issue text.