The way you have changed redstone has broken an item sorter that has been used since comparators were introduced in the game. I recently spent over 20 hours making a massive item sorter on a server with some friends of mine. I really enjoy all of the features of the nether update, however, this recent development has changed my mind on updating to the latest version, once released. You probably wont take this complaint into account, but I sincerely hope you do. Thank you for reading! Literal_Boat.
This not a bug. It's intended new behavior to the redstone. If you're not happy with that, you can always complain about it on the suggestion subreddit.
By the way, even if it were a bug, make sure to write bug title more in accordance with the bug report guide: https://help.minecraft.net/hc/en-us/articles/360039268071-Writing-Helpful-Bug-Reports-for-Minecraft-