alphagov/whitehall — pull request #1233 by jamiecobbett (2014-01-27 18:51:32+00:00)
Title: Make Mappings export (more) atomic

At the moment, if you happen to download the file during the 42 minute window in which it is being generated, you will get a partial file.

With this change, whilst the same user might get an older file (~12 hours), they will at least get a complete one.