Invalidate cache in CarrierWave uploader?

Hi, I having strange issue that I found many people struggle with through out issues, but I havent found how to make it using carrierwave. My problem is that if I have cloudinary carrierwave uploader on field in model and currently that field is nil and I upload new image using just simple_form form submit - it appears in cloudinary dashboard and as actual field in model so I can see uploaded image on site. Issue occurs when I want to update existing image on model - after `model.update_attributes` call with say `logo` parameter from form submitted, I see new image occurs in dashboard and old one is gone, however, my model still having old image in its field, so that I see only old image on site.

For example, my model `Comany` is Neo4j one, and in it is only that:
```ruby
class Company
...
property :logo
mount_uploader :logo, CompanyLogoUploader
...
end
```
`CompanyLogoUploader`:
```ruby
class CompanyLogoUploader < CarrierWave::Uploader::Base
include Cloudinary::CarrierWave

process :convert => 'jpg'

if Rails.env.development?
process :tags => ['env.development']
end

version :large do
process :resize_to_fit => [500, 500, :north]
end

version :medium do
process :resize_to_fit => [140, 140, :north]
end

version :small do
process :resize_to_fit => [80, 80, :north]
end

version :tiny do
process :resize_to_fill => [20, 20, :north]
end
end
```

Now, if I have company model without logo and upload new one, all is great and here what I see as logo:

```ruby
[2] pry(main)> Company.find('f0cfdf56-0f72-4184-affb-b37ee5fe097e').logo
=> #,
@version=nil>,
@model=
#,
@mounted_as=:logo,
@original_filename="spikbsjvpx9tkgi78c3w.jpg",
@public_id="spikbsjvpx9tkgi78c3w",
@stored_public_id="spikbsjvpx9tkgi78c3w",
@stored_version=nil>

[3] pry(main)> Company.find('f0cfdf56-0f72-4184-affb-b37ee5fe097e').logo.url(:medium)
=> "https://res3.cloudinary.com/davsupw1h/image/upload/c_fit,h_140,w_140/spikbsjvpx9tkgi78c3w.jpg"
```
It appears in dashboard with url: "https://res.cloudinary.com/davsupw1h/image/upload/v1532952671/spikbsjvpx9tkgi78c3w.jpg"

Now, If I'll change this image to smth else, here's updated debug:
```ruby
[4] pry(main)> Company.find('f0cfdf56-0f72-4184-affb-b37ee5fe097e').logo
=> #,
@version=nil>,
@model=
#,
@mounted_as=:logo,
@original_filename="spikbsjvpx9tkgi78c3w.jpg",
@public_id="spikbsjvpx9tkgi78c3w",
@stored_public_id="spikbsjvpx9tkgi78c3w",
@stored_version=nil>

[5] pry(main)> Company.find('f0cfdf56-0f72-4184-affb-b37ee5fe097e').logo.url(:medium)
=> "https://res-3.cloudinary.com/davsupw1h/image/upload/c_fit,h_140,w_140/spikbsjvpx9tkgi78c3w.jpg"
```

Whereas new image that got updated in dashboard has url "https://res.cloudinary.com/davsupw1h/image/upload/v1532953062/spikbsjvpx9tkgi78c3w.jpg" - version is changed.

So my question is next - should I pass version somehow in image uploader, and how/where?
If yes then why does carrierwave integration by default does not using version and rely on caching? Can I turn it off somehow, in uploader, in cloudinary initializer? Thanks.