Fractional accuracy changes not displaying in levelup dialog

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(Running svn 3610)

In the Levelup tab:
If I allocate one point to Dexterity in the "Stats" tab, then switch to the "Summary" tab, fractional changes don't seem to show up. The "Stats" tab claims that my Defense, Ranged Defense, and Accuracy will increase by 0.35, but the Summary tab claims that they'll increase by 0, 0, and 0.0 respectively.

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This may have something to do with using a two-handed weapon? It displays Accuracy +1.0 if I increase my strength by 1.