Merge 449_secondary_tag_url_enc

1 files changed, 2 insertions, 1 deletions

diff --git a/emitter.py b/emitter.py
index 72ea661..3d168db 100644
--- a/emitter.py
+++ b/emitter.py
@@ -92,6 +92,7 @@ class Emitter:
     DEFAULT_TAG_PREFIXES = {
         '!': '!',
         'tag:yaml.org,2002:': '!!',
+        '!!': '!!',
     }
     # fmt: on
 
@@ -955,7 +956,7 @@ class Emitter:
     def prepare_tag(self, tag: Any) -> Any:
         if not tag:
             raise EmitterError('tag must not be empty')
-        if tag == '!':
+        if tag == '!' or tag == '!!':
             return tag
         handle = None
         suffix = tag