model migration: more efficient UPDATE, avoiding subquery
model migration: more efficient UPDATE, avoiding subquery

vivekanand1101/debsources,vivekanand1101/debsources,devoxel/debsources,Debian/debsources,devoxel/debsources,clemux/debsources,clemux/debsources,Debian/debsources,sophiejjj/debsources,sophiejjj/debsources,zacchiro/debsources,oorestisime/debsources,Debian/debsources,oorestisime/debsources,nonas/debian-qa,zacchiro/debsources,matthieucan/debsources,nonas/debian-qa,vivekanand1101/debsources,vivekanand1101/debsources,oorestisime/debsources,matthieucan/debsources,matthieucan/debsources,devoxel/debsources,oorestisime/debsources,oorestisime/debsources,clemux/debsources,Debian/debsources,zacchiro/debsources,clemux/debsources,devoxel/debsources,devoxel/debsources,sophiejjj/debsources,matthieucan/debsources,vivekanand1101/debsources,zacchiro/debsources,nonas/debian-qa,nonas/debian-qa,Debian/debsources,sophiejjj/debsources,zacchiro/debsources,sophiejjj/debsources,clemux/debsources,matthieucan/debsources