Also test against external-issue for deleted projects
Also test against external-issue for deleted projects

This is based on:

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/10841

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