Coordinates don't update properly when moving a node

[rickmastfan67]

Inkscape 0.48.4 r9939
Windows 7 x64 SP1

Bug:
When moving a particular node by the keyboard arrows, the X,Y coordinates of the node do not update properly. This doesn't happen everywhere, but only in a few places.

Steps to reproduce:
1. Load the attached file.
2. Then go into the the 'Edit paths by node' mode, & find the node located @ X 399; Y 401 and select it. (It's the node at the top of the middle green line.)
3. Using your keyboard, hit the down arrow to move the node to X 399; Y 399

What should happen:
The coordinates for 'Y' should update to display the new location of the node @ Y 399.

What happens:
The coordinates for 'Y' don't properly update and show the node @ Y 401 still, even though it has been moved to Y 399.

This bug is also happening with the top node of the other two green lines in the attached file (X 397; Y 399) (X 401; Y 403). With both of them, if you just substitute each of their top nodes into Step 2 and then do Step 3 with them, the Y coordinates box doesn't update as well. Don't know how far this bug happens, but it seems to continue on the diagonal in both directions from the three lines.

[su_v (suv-lp)]

On OS X 10.7.5:
- reproduced with Inkscape 0.48.4 r9939, r10025
- not reproduced with 0.48+devel r13393

Based on tests with archived builds:
- reproduced with rev <= 12470,
- not reproduced with rev >= 12471;
 this appears to have been fixed by the changes of the GSoC unit refactoring branch which was merged in revision 12471:
<http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/revision/12471>