gdb-linaro bzr tree

Hi, I tried linaro gdb branch just now, $ bzr branch lp:gdb-linaro

parent branch is bzr+ssh://bazaar.launchpad.net/%2Bbranch/gdb-linaro/, which looks strange.

In gcc-linaro, parent branch is bzr+ssh://bazaar.launchpad.net/~linaro-toolchain-dev/gcc-linaro/4.5/

I thought parent branch of linaro gdb tree should be like bzr+ssh://bazaar.launchpad.net/~linaro-toolchain-dev/gdb-linaro/7.2/

Is there something wrong in this branch?