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All bone drivers selected when reselecting bone
Confirmed, NormalPublicKNOWN ISSUE

Description

System Information
Windows 8.1
GTX 580

Blender Version
Broken: 2.77, 2.77a
Worked: It seems any version before 2.77

Short description of error
Visual explanation:

Basically, all created drivers for a bone will be selected instead of the last active one when the bone is selected.
Very annoying problem that wasn't there before (Had to redo drivers several times because I didn't realize the last active driver isn't the active one anymore).

Event Timeline

KiJeon (0o00o0oo) raised the priority of this task from to 90.
KiJeon (0o00o0oo) updated the task description. (Show Details)
KiJeon (0o00o0oo) edited a custom field.
Bastien Montagne (mont29) lowered the priority of this task from 90 to Normal.Apr 15 2016, 10:59 AM

I don’t know what you mean by 'wasn’t there before', I could reproduce exact same behavior since at least 2.74 (did not check further).

@Joshua Leung (aligorith) I’d assume this is expected behavior and there is no bug, but will let you decide here. :)

Oopse, you're right. My apologies for lying. Just tested on 2.76 and 2.73.
I guess when I was testing this out last night, I accidentally did it for the armature instead of the bone in the other versions, haha.

Regardless, it's a strange behavior. It doesn't happen with the armature as a whole or other meshes. They all seem to retain the last selected driver as expected. It's odd that a bone won't.

Sybren A. Stüvel (sybren) changed the subtype of this task from "Report" to "Known Issue".Jan 6 2020, 5:02 PM

I'm marking this as known issue. We need to look into it, but that would require a proper design. I've added this task to https://wiki.blender.org/wiki/User:Sybren/Animation_Weak_Areas#Selection_synchronisation_between_pose_bones_and_animation_channels to ensure we won't forget it.