django does not fill POST dictionary for non-forms since version 1.5

[RubenGarcia]

django does not fill POST dictionary for non-forms since version 1.5
https://docs.djangoproject.com/en/2.2/ref/request-response/#django.http.HttpRequest.POST

My POST request from resumable.js looks like this:
<WSGIRequest: POST '/demo/resumable_upload?resumableChunkNumber=1&resumableChunkSize=1048576&resumableCurrentChunkSize=694&resumableTotalSize=694&resumableType=text%2Fplain&resumableIdentifier=694-readmetxt&resumableFilename=readme.txt&resumableRelativePath=readme.txt&resumableTotalChunks=1&content_type_id=application%2Foctet-stream&field_name=file'>

But
print (request.POST)
<QueryDict: {}>

The code fails in get_chunks_upload_to in the line
ct_id = request.POST['content_type_id']

with
Traceback (most recent call last):
django.utils.datastructures.MultiValueDictKeyError: 'content_type_id'

[RubenGarcia]

Some of the parameters are repeated in the body:

b'------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableChunkNumber"\r\n\r\n1\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableChunkSize"\r\n\r\n1048576\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableCurrentChunkSize"\r\n\r\n694\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableTotalSize"\r\n\r\n694\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableType"\r\n\r\ntext/plain\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableIdentifier"\r\n\r\n694-readmetxt\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableFilename"\r\n\r\nreadme.txt\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableRelativePath"\r\n\r\nreadme.txt\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="resumableTotalChunks"\r\n\r\n1\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="content_type_id"\r\n\r\napplication/octet-stream\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="field_name"\r\n\r\nfile\r\n------WebKitFormBoundaryJZK6sxhbWg1A7LGm\r\nContent-Disposition: form-data; name="file"; filename="readme.txt"\r\nContent-Type: application/octet-stream\r\n\r\n'