$ git clone -n https://gitee.com/mgb01105731/libjpeg-turbo.git /var/lib/mock/dist-an23.2-build-418896-72880/root/chroot_tmpdir/scmroot/libjpeg-turbo
Cloning into '/var/lib/mock/dist-an23.2-build-418896-72880/root/chroot_tmpdir/scmroot/libjpeg-turbo'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/libjpeg-turbo
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac50ef8 test