Uploaded indices don't follow baseurl option

[sparanoid]

I want to report a bug:

What is the current behavior?

When build indices with specific baseurl (see baseurl in Jekyll - Configuration Options), the uploaded indices don't have the baseurl prefixed to url attribute.

What is your expected behavior?

url attribute should be prefixed with baseurl option

Git repository to reproduce the issue:

Private repo, sorry, but I can grant you editor permission if you need.

Ruby version used:

ruby 2.6.3p62 (2019-04-16 revision 67580) [x86_64-darwin18]

Jekyll version used:

jekyll 3.8.5