incorrectness of forming custom part of soap header (soa 12.2.1.3)

hello all

soa suite 12.2.1.3 forming incorrect soap header with additional custom parts with same name but different namespace

in "invoke" activity in "header" was added variable for custom part

so

i want to add custom part in soap header like

<To xmlns="http://www.alex.org">myTo</To>

but in result forming following

<To xmlns="http://www.alex.org">myTo</To><wsa:To>myTo</wsa:To>

wsa:To also was rewrited by same value. It's incorrect because of different namespace

As for confirmation of this incorrectness i tried to add two elements

<To xmlns="http://www.alex.org">myTo</To>