Test for the fix for thumbnails
Test for the fix for thumbnails

and in general static and named maps generation. This is what I
should've written first to fix what's described in b612eaa

splashblot/dronedb,splashblot/dronedb,CartoDB/cartodb,CartoDB/cartodb,splashblot/dronedb,splashblot/dronedb,CartoDB/cartodb,CartoDB/cartodb,CartoDB/cartodb,splashblot/dronedb