Merge Request internal ids are colliding

I'm seeing a bug happening regularly where merge requests are created with the same issue numbers. I cannot find a way to reproduce at this time.

Example:

In Merge Request list:

In Merge Request detail:

gitlabhq_production=# select id, iid, title from merge_requests WHERE iid=1010 LIMIT 10;
  id  | iid  |               title
------+------+------------------------------------
 1919 | 1010 | Item <redacted>
 1918 | 1010 | Sav 8955 <redacted>

Possibly addressed by https://gitlab.com/gitlab-org/gitlab-ce/commit/1f84518ab7128e302f44085b4ecd8686f3f2ea2d

Yes it should be fixed by commit above

Status changed to closed

mentioned in commit 17970cf5

Mentioned in commit 17970cf5

mentioned in merge request !14785