Preserve up
and down
return type
#27620
Merged
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In Rails 4.2 calling
ActiveRecord::Migrator.migrate
would return an array of results. Without realizing that this return type was expected I accidentally introduced a change in 4d60e93This PR preserves the previous behavior and adds a test on the return type. This is a backport of #27596 to the 5-0-stable branch.