In a nested form, options[:errors] can be nil #142
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The problem here is:
{ errors: nil }.fetch(:errors, {}) #==> nil
but the code expects:
({ errors: nil }.fetch(:errors) || {}) #==> {}
for the chained ```#fetch``` to work.
This patch fixes it, though a more sophisticated patch should fix why in ```fields_for``` can the key exists with a nil value in first place.
Without the default option, ```#fetch``` won't full back but report "key not found".
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The problem here is:
but the code expects:
for the chained
#fetchto work.These patches fix the two problematic lines, though a more sophisticated patch should fix why in
fields_forcan the key exists with a nil value in first place.