fix: Headline.8d passing. All tests passing!

grammar.js

@@ -36,6 +36,8 @@ org_grammar = {
     // Should we start the tag?
     [$.item],
 
+    [$._tag_expr_start, $.expr],
+
     // _multiline_text  •  ':'  …
     // Is the ':' continued multiline text or is it a drawer?
     [$.paragraph],
@@ -112,13 +114,16 @@ org_grammar = {
     item: $ => repeat1($.expr),
 
     tag_list: $ => prec.dynamic(1, seq(
-      token(prec('non-immediate', ':')),
+      $._tag_expr_start,
       repeat1(seq(
         field('tag', alias($._noc_expr, $.tag)),
         token.immediate(prec('special', ':')),
       )),
     )),
 
+    // This is in another node to ensure a conflict with headline (item)
+    _tag_expr_start: _ => token(prec('non-immediate', ':')),
+
     property_drawer: $ => seq(
       caseInsensitive(':properties:'),
       repeat1($._nl),

src/grammar.json

@@ -330,15 +330,8 @@
         "type": "SEQ",
         "members": [
           {
-            "type": "TOKEN",
-            "content": {
-              "type": "PREC",
-              "value": "non-immediate",
-              "content": {
-                "type": "STRING",
-                "value": ":"
-              }
-            }
+            "type": "SYMBOL",
+            "name": "_tag_expr_start"
           },
           {
             "type": "REPEAT1",
@@ -375,6 +368,17 @@
         ]
       }
     },
+    "_tag_expr_start": {
+      "type": "TOKEN",
+      "content": {
+        "type": "PREC",
+        "value": "non-immediate",
+        "content": {
+          "type": "STRING",
+          "value": ":"
+        }
+      }
+    },
     "property_drawer": {
       "type": "SEQ",
       "members": [
@@ -4171,6 +4175,10 @@
     [
       "item"
     ],
+    [
+      "_tag_expr_start",
+      "expr"
+    ],
     [
       "paragraph"
     ],