Duplicate and conflicting Jira issue actions on merge requests.

Summary

Linked Gitlab with our Jira. When a MR mentions an issue in its description, the MR states 2 opposites things it will do (close / not close).

Steps to reproduce

Use the Jira integration from Gitlab. Submitted a merge request with in the description Closes OTA-1045 (OTA being our prefix). No other mentions of OTA=1045 in commits from the feature branch of the MR.

Expected behavior

A single mention with what will happen on Jira.

Actual behavior

Double mention saying both it will close and not close the issue.

Relevant logs and/or screenshots

Output of checks

Results of GitLab application Check

Checking GitLab Shell ...

GitLab Shell version >= 4.1.1 ? ... OK (4.1.1)
Repo base directory exists?
default... yes
Repo storage directories are symlinks?
default... no
Repo paths owned by git:git?
default... yes
Repo paths access is drwxrws---?
default... yes
hooks directories in repos are links: ... 
4/2 ... ok
4/3 ... ok
4/5 ... ok
4/7 ... ok
4/8 ... ok
4/9 ... ok
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Access to /var/opt/gitlab/.ssh/authorized_keys: OK
Send ping to redis server: OK
gitlab-shell self-check successful

Checking GitLab Shell ... Finished

Checking Sidekiq ...

Running? ... yes
Number of Sidekiq processes ... 1

Checking Sidekiq ... Finished

Checking Reply by email ...

Reply by email is disabled in config/gitlab.yml

Checking Reply by email ... Finished

Checking LDAP ...

LDAP is disabled in config/gitlab.yml

Checking LDAP ... Finished

Checking GitLab ...

Git configured with autocrlf=input? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config outdated? ... no
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory setup correctly? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
projects have namespace: ... 
4/2 ... yes
4/3 ... yes
4/5 ... yes
4/7 ... yes
4/8 ... yes
4/9 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.1.0 ? ... yes (2.3.3)
Your git bin path is "/opt/gitlab/embedded/bin/git"
Git version >= 2.7.3 ? ... yes (2.8.4)
Active users: 13
Elasticsearch version 2.4.x? ... yes (2.4.1)
Elasticsearch has plugin delete-by-query installed? ... no

Checking GitLab ... Finished

Results of GitLab environment info

System information
System:		Debian 8.7
Current User:	git
Using RVM:	no
Ruby Version:	2.3.3p222
Gem Version:	2.6.6
Bundler Version:1.13.7
Rake Version:	10.5.0
Sidekiq Version:4.2.7

GitLab information
Version:	8.15.4-ee
Revision:	e33b0cb
Directory:	/opt/gitlab/embedded/service/gitlab-rails
DB Adapter:	PostgreSQL
DB Version:	9.2.18
URL:		https://git.otainsight.com
HTTP Clone URL:	https://git.otainsight.com/some-group/some-project.git
SSH Clone URL:	git@git.otainsight.com:some-group/some-project.git
Elasticsearch:	no
Geo:		no
Using LDAP:	no
Using Omniauth:	yes
Omniauth Providers: google_oauth2, bitbucket

GitLab Shell
Version:	4.1.1
Repository storage paths:
- default: 	/var/opt/gitlab/git-data/repositories
Hooks:		/opt/gitlab/embedded/service/gitlab-shell/hooks/
Git:		/opt/gitlab/embedded/bin/git