correct build events migration cursor use
correct build events migration cursor use

glad i caught this in my own env before cutting the release. time to
start testing migrations, but that's really hard... :/

zachgersh/atc,zachgersh/atc,simonjjones/atc,utako/atc,pivotal-devin-fallak/atc,utako/atc,savaki/atc,savaki/atc,simonjjones/atc,simonjjones/atc,pivotal-devin-fallak/atc,zachgersh/atc,savaki/atc,pivotal-devin-fallak/atc,utako/atc,zachgersh/atc