Date feed not correct when sync feed

[And96]

Describe the bug Wrong dates. Same date for all articles of some websites. It shows hour of update insted of hour of the article.

To Reproduce Add these URL: https://tg24.sky.it/rss/tg24_cronaca.xml https://www.wikihow.it/feed.rss

Device (please complete the following information):

• Aggregator version: Preview-029
• Device: Xiaomi Mi9
• Android version: Android 10

Screenshots

[tughi]

First feed has invalid date format: https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Ftg24.sky.it%2Frss%2Ftg24_cronaca.xml

Second feed has no date for the included news items.

In both cases, as a fallback, the sync time is applied.