Some packed ids don't survive in Memory

[bbjygm]

This particular id was hanging me up, but it may be an issue for other: 59f1a51382100e1594f3def7

passing the packed id into unpack worked as expected,

unpackId(packId('59f1a51382100e1594f3def7'))
> 59f1a51382100e1594f3def7

but after putting it in memory the unpack did not return the correct id back

Memory.test = packId('59f1a51382100e1594f3def7')
unpackId(Memory.test)
> 59f1a51382100e1594f3fffd

Here's a pic of the console to demonstrate:

[Josh Lloyd]

Seems related to this #3