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-rw-r--r--activerecord/lib/active_record/connection_adapters/schema_cache.rb4
1 files changed, 3 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/schema_cache.rb b/activerecord/lib/active_record/connection_adapters/schema_cache.rb
index 5839d1d3b4..dd6363cd2a 100644
--- a/activerecord/lib/active_record/connection_adapters/schema_cache.rb
+++ b/activerecord/lib/active_record/connection_adapters/schema_cache.rb
@@ -70,7 +70,9 @@ module ActiveRecord
# if we get current version during initialization, it happens stack over flow.
@version = ActiveRecord::Migrator.current_version
[@version] + [:@columns, :@columns_hash, :@primary_keys, :@tables].map do |val|
- self.instance_variable_get(val).inject({}) { |h, v| h[v[0]] = v[1]; h }
+ instance_variable_get(val).dup.tap { |h|
+ h.default_proc = nil
+ }
end
end