What’s the proper editor to modify GIS data following the snapshot schema (tags in hstore columns)?

Hi.

I've imported OSM data in my Postgresql+postgis database following the snapshot schema shipped with osmosis.

Now, I want to modify the information with QGIS or a tool like this. The problem is that QGIS doesn't support the modification of attributes stored in hstore columns.

Does anyone know what's the proper tool to modify attributes in hstore columns?

Thank you.