Merge branch 'adinapoli/issue-498' into 'dev'

Allow ngrams to be searched even if they appear deeply nested

See merge request !433
4 jobs for dev in 51 minutes and 17 seconds (queued for 4 minutes and 6 seconds)
latest
Status Job ID Name Coverage
  Cabal
passed #19053
cabal

00:24:52

 
  Stack
passed #19054
stack

00:02:14

 
  Bench
manual #19055
allowed to fail manual
bench
 
  Test
passed #19056
test

00:24:10