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-rw-r--r--lib/sqlalchemy/orm/strategy_options.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/strategy_options.py b/lib/sqlalchemy/orm/strategy_options.py
index f54020fb7..90d14075c 100644
--- a/lib/sqlalchemy/orm/strategy_options.py
+++ b/lib/sqlalchemy/orm/strategy_options.py
@@ -385,6 +385,9 @@ class Load(Generative, MapperOption):
if c_token is p_token:
continue
+ elif c_token.is_mapper and p_token.is_mapper and \
+ c_token.isa(p_token):
+ continue
else:
return None
return to_chop[i + 1:]