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When a proc is given as a default value, the form builder ends up displaying `Proc#to_s` when the default is used. That's because we didn't handle the proc until type casting. This issue technically can occur any time that a proc is the value before type casting, but in reality the only place that will occur is when a proc default is provided through the attributes API, so the best place to handle this edge case is there. I've opted to memoize instead of just moving the `Proc#call` up, as this made me realize that it could potentially interact very poorly with dirty checking. The code here is a little redundant, but I don't want to rely on how `value_before_type_cast` is implemented in the super class, even if it's just an `attr_reader`. Fixes #24249 Close #24306 |
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