Return blob/blobs when #attach is able to save the record and return false if it is not able to

Author: ghousemohamed

activestorage/lib/active_storage/attached/many.rb

@@ -49,7 +49,8 @@ def blobs
     def attach(*attachables)
       if record.persisted? && !record.changed?
         record.public_send("#{name}=", blobs + attachables.flatten)
-        record.save
+        return record.public_send("#{name}") if record.save
+        false
       else
         record.public_send("#{name}=", (change&.attachables || blobs) + attachables.flatten)
       end

activestorage/lib/active_storage/attached/one.rb

@@ -56,7 +56,8 @@ def blank?
     def attach(attachable)
       if record.persisted? && !record.changed?
         record.public_send("#{name}=", attachable)
-        record.save
+        return record.public_send("#{name}") if record.save
+        false
       else
         record.public_send("#{name}=", attachable)
       end