Edit: KingRaptor helped me figure out it's a bug in steam's wishlist. It can bundle games without telling you then shows the combined discounted price.

Original post follows.

Title: Steam is lying about their discounts

This is a troubling trend I noticed today while browsing my wishlist on steam. One of the games seemed to have a double discount, but the price before discount was much higher than I remembered. The original price should have been under $20, but they had it listed as over $30. Checked steamdb.info, which is completely independent of steam, and sure enough the list price is $16.99.

I checked another game that had a double discount, and it was the same trend. List price of $7.99, but steam was showing $19.98 discounted to $7.63.

When did steam start engaging in this shady practice? Has this just started or has it been going on for a while?