diff --git a/lib/github/import.rb b/lib/github/import.rb
index 853f419d44e50ea19432d8fb14d68797cccba5c4..55f8387f27a257ba85e526cbdf74c356fd17d278 100644
--- a/lib/github/import.rb
+++ b/lib/github/import.rb
@@ -211,7 +211,7 @@ module Github
         # for both features, like manipulating assignees, labels
         # and milestones, are provided within the Issues API.
         if representation.pull_request?
-          return unless representation.labels? || representation.has_comments?
+          return unless representation.labels? || representation.comments?
 
           merge_request = MergeRequest.find_by!(target_project_id: project.id, iid: representation.iid)
 
@@ -248,7 +248,7 @@ module Github
     end
 
     def fetch_comments_conditionally(issuable, representation)
-      if representation.has_comments?
+      if representation.comments?
         comments_url = "/repos/#{repo}/issues/#{issuable.iid}/comments"
         fetch_comments(issuable, :comment, comments_url)
       end
diff --git a/lib/github/representation/branch.rb b/lib/github/representation/branch.rb
index 25b42994ab77d8fbb7ff4e13874da31a8e4bcf48..0087a3d3c4fb1e74d626df876e41bb18024a2bca 100644
--- a/lib/github/representation/branch.rb
+++ b/lib/github/representation/branch.rb
@@ -7,10 +7,14 @@ module Github
         raw.dig('user', 'login') || 'unknown'
       end
 
+      def repo?
+        raw['repo'].present?
+      end
+
       def repo
-        return @repo if defined?(@repo)
+        return unless repo?
 
-        @repo = Github::Representation::Repo.new(raw['repo']) if raw['repo'].present?
+        @repo ||= Github::Representation::Repo.new(raw['repo'])
       end
 
       def ref
@@ -25,12 +29,6 @@ module Github
         Commit.truncate_sha(sha)
       end
 
-      def exists?
-        return @exists if defined?(@exists)
-
-        @exists = repository.branch_exists?(ref)
-      end
-
       def valid?
         sha.present? && ref.present?
       end
diff --git a/lib/github/representation/issue.rb b/lib/github/representation/issue.rb
index c0a6d349e338c1d57e558dead7f0b485542dcb34..0e595301c586e9ca90d87d014779ebaa19902deb 100644
--- a/lib/github/representation/issue.rb
+++ b/lib/github/representation/issue.rb
@@ -5,7 +5,7 @@ module Github
         raw['state'] == 'closed' ? 'closed' : 'opened'
       end
 
-      def has_comments?
+      def comments?
         raw['comments'] > 0
       end
 
diff --git a/lib/github/representation/pull_request.rb b/lib/github/representation/pull_request.rb
index 9baa7af4ffa6d26d5c476c49d52614e13fe4a63b..0171179bb0fd5280ad5618b35eecb112178ab74b 100644
--- a/lib/github/representation/pull_request.rb
+++ b/lib/github/representation/pull_request.rb
@@ -1,8 +1,8 @@
 module Github
   module Representation
     class PullRequest < Representation::Issuable
-      delegate :user, :repo, :ref, :sha, to: :source_branch, prefix: true
-      delegate :user, :exists?, :repo, :ref, :sha, :short_sha, to: :target_branch, prefix: true
+      delegate :sha, to: :source_branch, prefix: true
+      delegate :sha, to: :target_branch, prefix: true
 
       def source_project
         project
@@ -11,7 +11,7 @@ module Github
       def source_branch_name
         # Mimic the "user:branch" displayed in the MR widget,
         # i.e. "Request to merge rymai:add-external-mounts into master"
-        cross_project? ? "#{source_branch_user}:#{source_branch_ref}" : source_branch_ref
+        cross_project? ? "#{source_branch.user}:#{source_branch.ref}" : source_branch.ref
       end
 
       def target_project
@@ -19,7 +19,7 @@ module Github
       end
 
       def target_branch_name
-        target_branch_ref
+        target_branch.ref
       end
 
       def state
@@ -62,9 +62,9 @@ module Github
       end
 
       def cross_project?
-        return true if source_branch_repo.nil?
+        return true unless source_branch.repo?
 
-        source_branch_repo.id != target_branch_repo.id
+        source_branch.repo.id != target_branch.repo.id
       end
     end
   end