Wrong pubDate order blog posts

[ledongthuc]

Description:

• Few links with newer published dates but's pushed to the end of paging.

Reproduce steps

1. Go to the last page of read.webuild.community, e.g. https://read.webuild.community/page/15
2. Check posts of thuc.space compare with others

Actual result

• Posts of thuc.space is newer published date but it's below of others

Expected result

• Correct order bases on pubDate

More information

• RSS of thuc.space is in https://thuc.space/index.xml that has pubDate with a format "Fri, 23 Jul 2021 19:00:00 +0100", it can be a problem for parsing date

[ledongthuc]

After testing, Huy Trần confirms the date parsing works correctly. But ordering got a problem if the first item of RSS is older than others. So correct order of RSS as workaround in https://github.com/webuild-community/federated-blog/pull/80