Fix specs for database migration helpers with transactions
Fix specs for database migration helpers with transactions

dplarson/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,t-zuehlsdorff/gitlabhq,dplarson/gitlabhq,mmkassem/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,mmkassem/gitlabhq,mmkassem/gitlabhq,jirutka/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,dreampet/gitlab,dplarson/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,dreampet/gitlab,dreampet/gitlab,dreampet/gitlab,stoplightio/gitlabhq,axilleas/gitlabhq,dplarson/gitlabhq,iiet/iiet-git,jirutka/gitlabhq,t-zuehlsdorff/gitlabhq,t-zuehlsdorff/gitlabhq