allow multiple overrides

internal/bzlmod/go_deps.bzl

@@ -119,16 +119,10 @@ def _is_dev_dependency(module_ctx, tag):
 
 # This function processes a given override type for a given module, checks for duplicate overrides
 # and inserts the override returned from the process_override_func into the overrides dict.
-def _process_overrides(module_ctx, module, override_type, overrides, process_override_func, additional_overrides = None):
+def _process_overrides(module_ctx, module, override_type, overrides, process_override_func):
     _fail_on_non_root_overrides(module_ctx, module, override_type)
     for override_tag in getattr(module.tags, override_type):
         _fail_on_duplicate_overrides(override_tag.path, module.name, overrides)
-
-        # Some overrides conflict with other overrides. These can be specified in the
-        # additional_overrides dict. If the override is in the additional_overrides dict, then fail.
-        if additional_overrides:
-            _fail_on_duplicate_overrides(override_tag.path, module.name, additional_overrides)
-
         overrides[override_tag.path] = process_override_func(override_tag)
 
 def _process_gazelle_override(gazelle_override_tag):
@@ -220,8 +214,8 @@ def _go_deps_impl(module_ctx):
                 outdated_direct_dep_printer = fail
 
         _process_overrides(module_ctx, module, "gazelle_override", gazelle_overrides, _process_gazelle_override)
-        _process_overrides(module_ctx, module, "module_override", module_overrides, _process_module_override, archive_overrides)
-        _process_overrides(module_ctx, module, "archive_override", archive_overrides, _process_archive_override, module_overrides)
+        _process_overrides(module_ctx, module, "module_override", module_overrides, _process_module_override)
+        _process_overrides(module_ctx, module, "archive_override", archive_overrides, _process_archive_override)
 
         if len(module.tags.from_file) > 1:
             fail(