master details list

Hi,
when i open details from master list, the labels of details are replicaded:

phprunner Enterprise 10.0 build 31851 x64 example:
Master:
labels:__Field1__Field2__Field3
values:____aaaa____bbbb____cccc
details:
labels:_______DetLabel1_________DetLabel2
values:_DetLabel1_DDDDD__DetLabel2_EEEEEE
values:_DetLabel1_FFFFF__DetLabel2_GGGGGG

in old phprunner Enterprise 9.8 it works fine example:
Master:
labels:__Field1__Field2__Field3
values:____aaaa____bbbb____cccc
details:
labels: __DetLabel1___Detlabel2
values: ______DDDDD______EEEEEE
values: ______FFFFF_______GGGGG

Thanks
Fabio