Thanks. That does look like the right place.
Now all I have to do is create a reddit account and figure out how to accumulate "10 Comment Karma".
sigh
Your missing feature is my bug.... but point taken. I figured it was worth a shot.
Is there a place where a mere mortal without 100k+ youtube subs or twitter followers can make serious suggestions (i.e. not the general forums that get clogged with silly suggestions)?
I'm wondering if this might be related to "[MC-49732] Pick Block using MOUSE BUTTON 4 dosent copy NBT data". They both seem to be cases where Mouse Button 4 doesn't accept modifier keys like the other buttons do.
I have retested this with 14w28b and confirmed that the bug is still present.
I've also confirmed that, as expected, the behavior is identical between a donkey and a mule.
Further, I have done additional testing and discovered that this seems to be specific to mouse Button 4. Keyboard keys and other mouse buttons (e.g. Button 3 and Button 5) work fine.
Additionally, I've tested and it appears that sneak-Button4 does not work for anything (e.g. placing a hopper attached to a chest). I would have thought I would have noticed that before noticing the problem with donkey chests, but obviously I didn't.
I also tested with 14w04b and it is present there as well.
Yes, this is still present with Launcher version 1.3.9 and Minecraft 1.7.4
Crash report, as requested.
Tested and confirmed to be working properly in 17w43b. I also went back and retested and confirmed that it is still broken in 1.12.2.