Enable Style/SafeNavigation coptc-no-more-try

I ran `rubocop -a --only Style/SafeNavigation` to correct all.

I could not enable `ConvertTry` cause it does not seem to be supported
by the version we're using.

https://gitlab.com/gitlab-org/gitlab-ce/issues/63875

1 files changed, 3 insertions, 3 deletions

diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 82034f5946b..f1c41766015 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -930,7 +930,7 @@ class MergeRequest < ApplicationRecord
   end
 
   def source_project_namespace
-    if source_project && source_project.namespace
+    if source_project&.namespace
       source_project.namespace.full_path
     else
       "(removed)"
@@ -938,7 +938,7 @@ class MergeRequest < ApplicationRecord
   end
 
   def target_project_namespace
-    if target_project && target_project.namespace
+    if target_project&.namespace
       target_project.namespace.full_path
     else
       "(removed)"
@@ -1271,7 +1271,7 @@ class MergeRequest < ApplicationRecord
   end
 
   def has_complete_diff_refs?
-    diff_refs && diff_refs.complete?
+    diff_refs&.complete?
   end
 
   # rubocop: disable CodeReuse/ServiceClass