attributes display gives two strange errors (empty + "Inconsistent number...")

[jamesp670]

Requirements:

• GRASS GIS 7.0.0svn (r63888)

Process:

1. Download this TIGER census file (pardon French): : ​http://www2.census.gov/geo/tiger/TIGER2010DP1/Tract_2010Census_DP1.zip : Longueur: 409901240 (391M) [application/zip] : Sauvegarde en : «Tract_2010Census_DP1.zip»
2. Import it : db.connect driver=pg database=portal-total : v.in.ogr dsn=/home/powellj/gisdata/Tract_2010Census_DP1/Tract_2010Census_DP1.shp output=tract2010censusdp1

3. Add it to the Map layers in the GUI.

4. Then click on "Show attribute data for selected vector map" in the GUI.

What I expect to see:

The attribute table for the census map.

What happens instead:

1. Please wait, loading attribute data... (for 45 seconds or so)
2. Then a window titled "GRASS GIS Attribute Manager - <tract20..." opens, with the text "Loading data..." in the bottom left of it. On top of this, centered, is a modal dialog box with a red circle in it, with a white bar through that circle, and a button reading OK and /nothing else/. No text at all.
3. When I click OK on that to dismiss it, after another 10 seconds, another modal dialog box appears. This one has text, which reads "Inconsistent number of columns in the table <Tract2010cebsysdp1>".

I researched this, but only found ​http://trac.osgeo.org/grass/ticket/1633 which is a 20-month old bug involving the pipe character in field names. My field names are extremely plain, no pipes.