File changes propagating in older snapshots: what am I doing wrong?

[tech_lists at mail.com]

> A slave PFS doesn't even have a PFS root inode till it's
> once sync'd with a master.
> Until then one can't really do anything with it
> (can't even cd), but no document explains this.
> http://lists.dragonflybsd.org/pipermail/users/2015-April/311953.html

I'm not sure I'm understanding, but just to make sure I explained everything correctly: the PFSs with the 0x0000000000000000 ID listed among snapshot are not slaves, they are masters.