Do not encode cached value to determine size (#2143)

Author: sentrivana

sentry_sdk/integrations/django/caching.py

@@ -51,7 +51,7 @@ def _instrument_call(cache, method_name, original_method, args, kwargs):
             if value:
                 span.set_data(SPANDATA.CACHE_HIT, True)
 
-                size = len(text_type(value).encode("utf-8"))
+                size = len(text_type(value))
                 span.set_data(SPANDATA.CACHE_ITEM_SIZE, size)
 
             else: