Vim nightly download for Windows 64 in Firefox reports "Deceptive Site" and marked as being dangerous

Hi,
today on Vim nightly for Windows
https://github.com/vim/vim-win32-installer/releases/
I tried to download gvim_8.0.0771_x64.zip so link is
https://github.com/vim/vim-win32-installer/releases/download/v8.0.0771/gvim_8.0.0771_x64.zip

When clicking on above link web page URL is changed to
https://github-production-release-asset-2e65be.s3.amazonaws.com/50428480/1f20e306-70cd-11e7-8b18-27d2c2dca7a8?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20170725%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20170725T053509Z&X-Amz-Expires=300&X-Amz-Signature=a71f7054845a27fa8e7f3fe102514f19362f278e4773c3ce17a49d58ab81fa78&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Dgvim_8.0.0771_x64.zip&response-content-type=application%2Foctet-stream

and I get "Deceptive Site" red screen in Firefox 54 with full message:



Deceptive Site!

This web page at github-production-release-asset-2e65be.s3.amazonaws.com has been reported as a deceptive site and has been blocked based on your security preferences.

Deceptive sites are designed to trick you into doing something dangerous, like installing software, or revealing your personal information, like passwords, phone numbers or credit cards.

Entering any information on this web page may result in identity theft or other fraud.


Is it fine to continue or is there really a security problem?
Regards

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