Randomize centers has difficulties with what it relates to

I noticed this in the compiled 0.91pre2 from the currently offered tarball on the inkscape website (http://sourceforge.net/projects/inkscape/files/inkscape/0.91pre2/inkscape-0.91pre2.tar.bz2/download), but I think this is already the case in 0.48.

If I select a bunch of objects and do 'randomize centers', this works as expected.
Then I align those objects, for example in a row, and I'd expect 'randomize centers' to work relative to the new bounding box.
But it currently doesn't - it scatters the centers relative to the old bounding box.

If I deselect everything and scatter the objects again, it works again as expected, using the current bounding box as limit for 'randomize centers'.

So it seems to me the bounding box 'randomize centers' uses is only updated when I first select the objects, but not if I do another alignment operation in between.

This may be intended, but it becomes strange when you put an 'undo' into the mix, or if you do the alignment operation first (say everything to the left) and want to scatter the objects within the newly made alignment without deselecting everything first.

The behaviour I would expect is the following: Keep the bounding box as long as the only thing I do is 'randomize centers', and use a new bounding box if I do anything else which changes the bounding box.