Packing/Unpacking and Sound Emitter Problem

Packing the blend's external files doesn't seem to break anything, but unpacking them afterward causes the following error during export for sound emitters:

Error: SoundEmitter '[sound empty object]': Sound '[sound file].ogg' failed to open file

Reopening the sound file right away causes a ".001" to be added to the end of the file name, which breaks sound nodes in any responders. Clearing out the sound emitters (hitting "x" near the sound file in the modifier), clearing the orphan data, then reopening the sound file fixes the problem.

My guess is that Blender is not unpacking the sound files along with the textures and is then pointing the modifiers to a directory where the sounds don't exist? This could be a wrong selection during the unpacking process (I believe it was "Use Current Directory"). Using the "Find Missing Files" option doesn't seem to help either.

No files or tests are named. Start by reproducing the pack/unpack and export flow with a sound emitter, then compare the unpacking and Find Missing Files behavior; done means the sound opens after unpacking, export succeeds, and reopening does not add a ".001" suffix or break responder sound nodes.