[CMake] Repeating sub source_group ?

[Hari Sundar]

Hi,

I am using SOURCE_GROUP to organize my Visual Studio project. I add
source groups like

source_group("src\\utils" FILES ${UTILS_SRC})

source_group("hdr\\utils" FILES ${UTILS_HDR})


This produces a code tree like,

- src/utils
- hdr/utills No. 1

How can I avoid the No. 1 ? I simply want

src/utils
hdr/utils

thanks,
~Hari