Why does grayskull hardcode the name in the source url?

[matthewfeickert]

This is just more of genuine curiosity and to learn a bit more about grayskull's design (c.f. conda-forge/uproot-feedstock#158 (comment)): Given that grayskull recipes set the name variable and then use it in the source url, why is the final instance of the name hardcoded?

Example

Given

$ grayskull pypi uproot
$ head -n 9 uproot/meta.yaml 
{% set name = "uproot" %}
{% set version = "5.4.0" %}

package:
  name: {{ name|lower }}
  version: {{ version }}

source:
  url: https://pypi.org/packages/source/{{ name[0] }}/{{ name }}/uproot-{{ version }}.tar.gz

why is this

source:
  url: https://pypi.org/packages/source/{{ name[0] }}/{{ name }}/uproot-{{ version }}.tar.gz

instead of

source:
  url: https://pypi.org/packages/source/{{ name[0] }}/{{ name }}/{{ name }}-{{ version }}.tar.gz

?

Apologies for missing what is probably an obvious answer in retrospect.