$ git clone -n https://gitee.com/mgb01105731/gcc_1.git /var/lib/mock/dist-an23-build-358612-71155/root/chroot_tmpdir/scmroot/gcc_1
Cloning into '/var/lib/mock/dist-an23-build-358612-71155/root/chroot_tmpdir/scmroot/gcc_1'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc_1
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
Updating files:  32% (9/28)
Updating files:  35% (10/28)
Updating files:  39% (11/28)
Updating files:  42% (12/28)
Updating files:  46% (13/28)
Updating files:  50% (14/28)
Updating files:  53% (15/28)
Updating files:  57% (16/28)
Updating files:  60% (17/28)
Updating files:  64% (18/28)
Updating files:  67% (19/28)
Updating files:  71% (20/28)
Updating files:  75% (21/28)
Updating files:  78% (22/28)
Updating files:  82% (23/28)
Updating files:  85% (24/28)
Updating files:  89% (25/28)
Updating files:  92% (26/28)
Updating files:  96% (27/28)
Updating files: 100% (28/28)
Updating files: 100% (28/28), done.
HEAD is now at 21bea17 update to 12.3.0