fixed the optional element conditions#9
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fieteboerner wants to merge 1 commit intoTorann:masterfrom
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the !== null is not working because the htmlspecialchars will return an empty string instead of null if no value is given
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the
!== nullwill never return false because the htmlspecialchars will return anempty string instead of null, if no value is given
So the element will be rendered even if no value is given.