Fix `Routable.find_by_full_path` on MySQL
Fix `Routable.find_by_full_path` on MySQL

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