Fix an issue when filtering merge requests with more than one label

Signed-off-by: Rémy Coutable <remy@rymai.me>

1 files changed, 2 insertions, 2 deletions

diff --git a/app/models/concerns/issuable.rb b/app/models/concerns/issuable.rb
index 7a3db742030..c1248b53031 100644
--- a/app/models/concerns/issuable.rb
+++ b/app/models/concerns/issuable.rb
@@ -124,8 +124,8 @@ module Issuable
     end
 
     def with_label(title)
-      if title.is_a?(Array) && title.count > 1
-        joins(:labels).where(labels: { title: title }).group('issues.id').having("count(distinct labels.title) = #{title.count}")
+      if title.is_a?(Array) && title.size > 1
+        joins(:labels).where(labels: { title: title }).group(arel_table[:id]).having("COUNT(DISTINCT labels.title) = #{title.size}")
       else
         joins(:labels).where(labels: { title: title })
       end