Fix custom delimiters in nested partials (#739)

Closes https://github.com/janl/mustache.js/pull/738

mustache.js

@@ -644,7 +644,7 @@
       if (tagIndex == 0 && indentation) {
         indentedValue = this.indentPartial(value, indentation, lineHasNonSpace);
       }
-      return this.renderTokens(this.parse(indentedValue, tags), context, partials, indentedValue);
+      return this.renderTokens(this.parse(indentedValue, tags), context, partials, indentedValue, tags);
     }
   };
 

mustache.mjs

@@ -637,7 +637,7 @@ Writer.prototype.renderPartial = function renderPartial (token, context, partial
     if (tagIndex == 0 && indentation) {
       indentedValue = this.indentPartial(value, indentation, lineHasNonSpace);
     }
-    return this.renderTokens(this.parse(indentedValue, tags), context, partials, indentedValue);
+    return this.renderTokens(this.parse(indentedValue, tags), context, partials, indentedValue, tags);
   }
 };
 

test/partial-test.js

@@ -157,4 +157,19 @@ describe('Partials spec', function () {
       var renderResult = Mustache.render(template, data, partials);
       assert.equal(renderResult, expected);
     });
+
+    it('Nested partials should support custom delimiters.', function () {
+      var tags = ["[[", "]]"];
+      var template = '[[> level1 ]]';
+      var partials = {
+        level1: 'partial 1\n[[> level2]]',
+        level2: 'partial 2\n[[> level3]]',
+        level3: 'partial 3\n[[> level4]]',
+        level4: 'partial 4\n[[> level5]]',
+        level5: 'partial 5',
+      };
+      var expected = 'partial 1\npartial 2\npartial 3\npartial 4\npartial 5';
+      var renderResult = Mustache.render(template, {}, partials, tags);
+      assert.equal(renderResult, expected);
+    });
 });