The bug
When you right click a redstone hoppers that are next to it will not update whether they are enabled or not.
How to reproduce:
Place a redstone torch
Place stone above it
Place redstone on top
Place a hopper next to it
Press F3
Right click the redstone
Look at a hopper
Actual result: The hopper will stay disabled.
Expected result: The hopper will be enabled.
Related issues
Attachments
Comments

That works as intended.
The redstone dust when it is a circle is not connected to the hopper, therefore it doesn't power it.
The F3 screen doesn't update for technical block state updates like this, see MC-70127. Are you sure the hopper's item transfering ability is not enabled/disabled? Please check with a chest above and below the hopper and putting items inside of the one above the hopper.
@KingSheepMC did you read the report? It says that it do not update until player opens it.
But when you right click it it changes whether it is connected to the hopper or not. And if you place it, it is correct.
@[[Mod] violine1101|https://bugs.mojang.com/secure/ViewProfile.jspa?name=violine1101] does lack of visual update count for this beeing reopened?
@violine1101 Disabling the transport item ability works correctly. It seems like it is just wrong on the debug screen and it will update on the debug screen when you right click it.
@Dawid i forgot lol. That's a bug.
The debug screen doesn't update immediately for some block states in order to save bandwidth, see MC-70127.