Please add stripping of duplicates in FeedMergeBridge

[HolgerAusB]

Bridge additional feature request

FeedMerge Bridge of @dvikan is great! But I have some problems to understand some things.

It gets 10 Items of up to 5 feeds and combine them to a single feed. But RSS-Bridge is limiting the outgoing feed to 10 items. So most likely from the 3rd to 5th feed no items might be in the feed. Or does the bridge resort all articles by publishing date and only the 10 newest will go to the combined outgoing feed?

Would it be hard to have an option to strip duplicate articles? Then this bridge would make a lot more sense.

Examples

The following two feeds have lots of identical articles because news about the capital city 'Vienna' (Wien) are also news within the country of 'Austria' (Österreich).

• https://diepresse.com/rss/Wien
• https://diepresse.com/rss/%C3%96sterreich

[dvikan]

See #2854

Will considering de-duplication. Maybe a check for it.

[HolgerAusB]

Marvelous, thank you so much @dvikan!