Observers don't detect redstone dust changes

After the fix of redstone dust not being able to update properly, I tested if it is fixed my door. However, this update introduces a new bug that broke my door in a way that isn't fixable: Observers cannot detect any changes to redstone dust. My door relies on that mechanic.

Disclamer: this bug is a duplicate of MC-275774. I only discovered that after I reported this bug.