$ git clone -n https://gitee.com/cobratoxin/prefixdevname.git /var/lib/mock/dist-an8.8-build-286925-64855/root/chroot_tmpdir/scmroot/prefixdevname
Cloning into '/var/lib/mock/dist-an8.8-build-286925-64855/root/chroot_tmpdir/scmroot/prefixdevname'...
$ git fetch origin 357eb37d2adc6fe5354d49fef731d2dba4cc290e:KOJI_FETCH_HEAD
From https://gitee.com/cobratoxin/prefixdevname
 * [new ref]         357eb37d2adc6fe5354d49fef731d2dba4cc290e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 357eb37 spec: add doc sub package