julia

2ca58354 - Restore check to avoid duplicate method tables serialization (#61221)

Restore check to avoid duplicate method tables serialization (#61221) When a custom method table is defined in one package and imported by another, jl_foreach_reachable_mtable visits the same table twice (once per module binding). This causes extext methods to be collected and serialized twice, and on loading, jl_method_table_activate asserts because dispatch_status was already set by the first activation. Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>