finish #13598#18047

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xabbuh wants to merge 2 commits intosymfony:2.3from

xabbuh:pr-13598

Commits on Mar 7, 2016

Fixed a very weird edge case where empty data may not be a string and it throws a TransformationFailedException with message: 'Expected a string.'.

guilhermeblanco
authored and
xabbuh
committed
add tests for previous commit to avoid regressions
xabbuh
committed