$ git clone -n https://gitee.com/src-anolis-dde/deepin-image-viewer.git /var/lib/mock/dist-an8.7-dde-build-188735-60707/root/chroot_tmpdir/scmroot/deepin-image-viewer
Cloning into '/var/lib/mock/dist-an8.7-dde-build-188735-60707/root/chroot_tmpdir/scmroot/deepin-image-viewer'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-dde/deepin-image-viewer
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cb95dc !2 rebuild for an8.6 Merge pull request !2 from xingwei-liu/a8