Add changelog entry for pipeline etag issue
Add changelog entry for pipeline etag issue

[ci skip]

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