Revert ignoring link references

Punting on proper handling for now.

Author: mtodd

app/assets/javascripts/task_list.coffee

@@ -130,16 +130,6 @@ itemPattern = ///
     \s*
     \(.*?\)
   )
-  (?=                     # and not part of a link reference
-    \s*
-    (?:(?:\[.*?\]\s*){2})*
-    (?:[^\[]|$)
-  )
-  # (?!                     # is not a link
-  #   \s*                   # with optional whitespace
-  #   (?:\(.*?\)|\[.*?\])   # because of destination or reference
-  #   (?:\s*[^\[\(])        # but itself not first part of a link
-  # )
 ///
 
 # Used to filter out code fences from the source for comparison only.

test/unit/test_updates.coffee

@@ -466,18 +466,18 @@ asyncTest "update ignores items that look like Task List items but are links", -
 
   field = $ '<textarea>', class: 'js-task-list-field', text: """
     - [ ] (link)
-    - [ ] [reference]
+    # - [ ] [reference]
     - [ ] () collapsed
-    - [ ] [] collapsed reference
+    # - [ ] [] collapsed reference
     - [ ] \\(escaped item)
     - [ ] item
   """
 
   changes = """
     - [ ] (link)
-    - [ ] [reference]
+    # - [ ] [reference]
     - [ ] () collapsed
-    - [ ] [] collapsed reference
+    # - [ ] [] collapsed reference
     - [ ] \\(escaped item)
     - [x] item
   """