Land the maintainer's two decisions: the reader's home and the claim code's name

src/markdown/parse/blocks.test.ts

@@ -36,6 +36,7 @@ test('keeps the link reference definitions a paragraph gives up, the first of a
 
 test('leaves the paragraph a line no definition spells', () => {
   assert.deepEqual(definitions('[]: /url\n'), [])
+  assert.deepEqual(definitions('[ ]: /url\n'), [])
   assert.deepEqual(definitions('[a]: <un>closed>\n'), [])
   assert.deepEqual(definitions('[a]: <unclosed\n'), [])
   assert.deepEqual(definitions('[a]: /url)x\n'), [])

src/markdown/parse/link-reference-definitions.ts

@@ -37,7 +37,6 @@ function readDefinition(text: string): ReadDefinition | undefined {
   return { definition: { destination: destination.value }, label: name, length: plain }
 }
 
-// CommonMark's label matching: the whitespace a label holds collapses, and its case folds.
 function normalizeLabel(raw: string): string {
   return raw
     .replace(/^[ \t\n]+|[ \t\n]+$/g, '')