snap closest node to pointer fails when too many objects are selected

[Formerly Kevin Yin, now disabled]

I have the option, "Only snap the node closest to the pointer" enabled.

To reproduce:
1. new document, create a lot of objects. Or just use the one I attached.
2. enable snap cusp nodes. turn on the grid.
3. Ctrl A to select everything.
4. click and hold on an object to drag it around. Notice that the node being snapped will not be the one closest to your pointer.

Windows 8.1, Intel HD3000 (4000?) graphics. There is noticeable lag while moving lots of things around or zooming (which isn't the bug being reported, just an artifact of my current setup).

[Formerly Kevin Yin, now disabled (kyin)]

Inkscape 0.48.4

[Formerly Kevin Yin, now disabled (kyin)]

Not reproduced in r13425. Presumably fixed.

[su_v (suv-lp)]

Presumably a duplicate of either bug #1093739 / bug #1104272 (snapping regressions in current stable 0.48.4, fixed in trunk and for 0.48.5).