better error handling for upload extension fixer

lib/tasks/uploads.rake

@@ -713,5 +713,5 @@ end
 
 task "uploads:fix_incorrect_extensions" => :environment do
   require_dependency "upload_fixer"
-  UploadFixer.fix_extensions
+  UploadFixer.fix_all_extensions
 end

lib/upload_fixer.rb

@@ -1,6 +1,11 @@
 class UploadFixer
-  def self.fix_extensions
+  def self.fix_all_extensions
     Upload.where("uploads.extension IS NOT NULL").find_each do |upload|
+      fix_extension_on_upload(upload)
+    end
+  end
+
+  def self.fix_extension_on_upload(upload)
     is_external = Discourse.store.external?
     previous_url = upload.url.dup
 
@@ -65,9 +70,12 @@ class UploadFixer
             tombstone_path
           )
         end
+
       end
     end
-    end
+  rescue => e
+    STDERR.puts "Skipping upload: ailed to correct extension on upload id: #{upload.id} #{current_extension} => #{correct_extension}"
+    STDERR.puts e
   end
 
   private