Ensure we don't have leftover columns after loading

This will prevent fetching useless fields, and potentially off by 1 or
more when loading entities after a database change
5 jobs for master in 17 minutes and 38 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #284060
amd64 debian
asan-ubsan

00:08:43

passed #284059
amd64 debian
coverage

00:08:53

80.2%
passed #284056
amd64 debian
linux

00:10:19

passed #284057
win32
win32

00:12:16

passed #284058
win64
win64

00:11:40