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-rw-r--r--app/graphql/types/global_id_type.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/app/graphql/types/global_id_type.rb b/app/graphql/types/global_id_type.rb
index 9ae9ba32c13..4c51d4248dd 100644
--- a/app/graphql/types/global_id_type.rb
+++ b/app/graphql/types/global_id_type.rb
@@ -30,6 +30,8 @@ module Types
# @param value [String]
# @return [GID]
def self.coerce_input(value, _ctx)
+ return if value.nil?
+
gid = GlobalID.parse(value)
raise GraphQL::CoercionError, "#{value.inspect} is not a valid Global ID" if gid.nil?
raise GraphQL::CoercionError, "#{value.inspect} is not a Gitlab Global ID" unless gid.app == GlobalID.app