$ git clone -n https://gitee.com/mgb01105731/libisoburn_1.git /var/lib/mock/dist-an23.2-build-416759-72829/root/chroot_tmpdir/scmroot/libisoburn_1
Cloning into '/var/lib/mock/dist-an23.2-build-416759-72829/root/chroot_tmpdir/scmroot/libisoburn_1'...
$ git fetch origin a23.2:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/libisoburn_1
 * [new branch]      a23.2      -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 94e6dd4 Sync up from CentOS Stream libisoburn-1.5.6-1(tdawson@redhat.com)