Remove ref doc will broke the parent router

[crapthings]

let's have service A and service B
when A has many B

A: { childrenIds: [1, 2, 3] }

then you use populate hook on A like

const findPatents = hooks.populate('children', {
  service: 'B',
  field: 'childrenIds'
})

you remove any B will cause A router "404 not found"

is this consider a bug ?

[daffl]

I'm not sure what else it should do? It could probably throw a more specific error like Error populating 'children': <error message here>.

[daffl]

This should no be handled in the new populate hook in feathers-hooks-common.