S3 /trash moves fail > 5GB

[vacri]

version: buttersink 0.6.9 via pip

Buttersink runs into the 5GB chunk limit when 'trashing' files on s3. I have a list of old snapshots on s3 which float around 5GB - all the ones larger than 5GB haven't been 'trashed', but the ones below 5GB move into /trash as expected.

I'm using buttersink in a backup script for prometheus, and I get these sorts of errors when it runs

   InvalidRequest: The specified copy source is larger than the maximum allowable size for a copy source: 5368709120
   Trash: 0539...104e //prometheus_backup from None (17.45 GiB)
   InvalidRequest: The specified copy source is larger than the maximum allowable size for a copy source: 5368709120
   Trash: 60f2...6410 //prometheus_backup from None (5.341 GiB)
   InvalidRequest: The specified copy source is larger than the maximum allowable size for a copy source: 5368709120
   Trash: 73de...22cb //prometheus_backup from None (5.528 GiB)
   InvalidRequest: The specified copy source is larger than the maximum allowable size for a copy source: 5368709120
   Trash: 81f7...d2ff //prometheus_backup from None (5.082 GiB)
   InvalidRequest: The specified copy source is larger than the maximum allowable size for a copy source: 5368709120
   Trash: 4f96...b6a7 //prometheus_backup from None (5.406 GiB)

S3 needs all operations above 5GB to be broken into 5GB chunks (or less). Note that I have no problem in syncing the original large files from the server to s3 - this issue is just in moving the snapshot to the /trash folder

Cheers,

vacri