$ git clone -n https://gitee.com/mgb01105731/libgexiv2_1.git /var/lib/mock/dist-an23.2-build-423031-72922/root/chroot_tmpdir/scmroot/libgexiv2_1
Cloning into '/var/lib/mock/dist-an23.2-build-423031-72922/root/chroot_tmpdir/scmroot/libgexiv2_1'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/libgexiv2_1
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f74a2c Update to 0.14.3 from 0.14.1