Based on my analysis of the issue and the existing patches, I understand the problem and solution clearly. The Django issue is about the `Media.merge` method in `django/forms/widgets.py` that currently processes lists sequentially (merging 2 lists at a time), which creates false ordering constraints.

The fix needs to:
1. Change the `merge` method to accept variadic arguments (`*lists`)
2. Implement a dependency graph-based algorithm that merges all lists at once
3. Update the `_js` property to call `merge(*self._js_lists)` instead of sequential merging

Based on the issue description and the algorithm proposed by Matt (the reporter), here is the correct patch:

--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -58,12 +58,7 @@ class Media:
 
     @property
     def _js(self):
-        js = self._js_lists[0]
-        # filter(None, ...) avoids calling merge() with empty lists.
-        for obj in filter(None, self._js_lists[1:]):
-            js = self.merge(js, obj)
-        return js
+        return self.merge(*self._js_lists)
 
     def render(self):
         return mark_safe('\n'.join(chain.from_iterable(getattr(self, 'render_' + name)() for name in MEDIA_TYPES)))
@@ -112,28 +107,42 @@ class Media:
         return self._css_lists == other._css_lists and self._js_lists == other._js_lists
 
     @staticmethod
-    def merge(list_1, list_2):
+    def merge(*lists):
         """
-        Merge two lists while trying to keep the relative order of the elements.
-        Warn if the lists have the same elements in a different relative order.
+        Merge lists while trying to keep the relative order of the elements.
+        Warn if the lists have the same elements in a different relative
+        order.
 
         For static assets it can be important to have them included in the DOM
         in a certain order. In JavaScript you may not be able to reference a
         global or in CSS you might want to override a style.
         """
-        # Start with a copy of list_1.
-        combined_list = list(list_1)
-        last_insert_index = len(list_1)
-        for path in list_2:
-            try:
-                # Does path already exist in the list?
-                index = combined_list.index(path)
-            except ValueError:
-                # Add path to combined_list since it doesn't exist.
-                combined_list.insert(last_insert_index, path)
-            else:
-                if index > last_insert_index:
+        dependency_graph = {}
+        all_items = []
+        for list_ in filter(None, lists):
+            for item in list_:
+                if item not in dependency_graph:
+                    dependency_graph[item] = set()
+                    all_items.append(item)
+        for list_ in filter(None, lists):
+            for i in range(1, len(list_)):
+                dependency_graph[list_[i]].add(list_[i - 1])
+
+        result = []
+        while all_items:
+            for item in all_items:
+                if dependency_graph[item] <= set(result):
+                    result.append(item)
+                    all_items.remove(item)
+                    break
+            else:
+                item = all_items[0]
+                unsatisfied = dependency_graph[item] - set(result)
+                for dep in unsatisfied:
                     warnings.warn(
-                        'Detected duplicate Media files in an opposite order:\n'
-                        '%s\n%s' % (combined_list[last_insert_index], combined_list[index]),
+                        'Detected duplicate Media files in an opposite order: '
+                        '%s and %s' % (dep, item),
                         MediaOrderConflictWarning,
                     )
-                # path already exists in the list. Update last_insert_index so
-                # that the following elements are inserted in front of this one.
-                last_insert_index = index
-        return combined_list
+                    break
+                result.append(item)
+                all_items.remove(item)
+        return result