When calling "count" on a Criteria that includes $near, I get the error, "Mongo::Error::OperationFailure Exception: $geoNear, $near, and $nearSphere are not allowed in this context (2)".

I noticed this issue when upgrading from Mongoid 7.0.2 to 7.2.2. Previously, the count was returned correctly.

A behavior difference I notice is that with mongoid 7.2.2 the query is turned into an aggregation. Previously, this was a regular count command.

Example aggregation sent to the server:

{
  aggregate: "college_listings",
  pipeline: [
    {
      $match: {
        active_in_search: true,
        loc: {$near: [20, 20]},
        $and: [{loc: {$near: [20, 20]}}]
      }
    },
    {$group: {_id: 1, n: {$sum: 1}}}
  ],
  cursor: {},
  $db: "raise-test",
  lsid: {id: UUID("0fc75d31-449b-4fd6-ad70-1284c0b57808")}
}

Ruby code:

class CollegeListing
  include Mongoid::Document

  field :loc, type: Array
end

CollegeListing.where(loc: { '$near' => [20, 20] }).count