[ngrams] documents from write nodes: add commit after flow

4 jobs for 596-dev-ngrams-initial-sync-fix in 41 minutes and 35 seconds (queued for 23 seconds)
latest
Status Job ID Name Coverage
  Stack
passed #8707
stack

00:04:26

 
  Cabal
passed #8708
cabal

00:23:24

 
  Bench
passed #8709
bench

00:03:45

 
  Test
passed #8710
test

00:09:58