$ git clone -n https://gitee.com/src-anolis-dde/re2.git /var/lib/mock/dist-an8.9-dde-build-305446-66703/root/chroot_tmpdir/scmroot/re2
Cloning into '/var/lib/mock/dist-an8.9-dde-build-305446-66703/root/chroot_tmpdir/scmroot/re2'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-dde/re2
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b35d8c rebuild for qt5-qtbase-5.15.3