Make mutating params#dig mutate underlying params

When #dig was called on a params object and return either a Hash or an
Array, and that value was subsquently mutated, it would not modify the
containing params object. That means that the behavior of
`params.dig(:a, :b)[:c] = 1` did not match either `params[:a][:b][:c] =
1` nor `hash.dig(:a, :b)[:c] = 1`. Similarly to
`ActionController::Parameters#[]`, use `#convert_hashes_to_parameters`
to pre-convert values and insert them in the receiving params object
prior to returning them.

0 files changed, 0 insertions, 0 deletions