$ git clone -n https://gitee.com/lzq11122/deepin-image-viewer.git /var/lib/mock/dist-an23-dde-build-525866-78555/root/chroot_tmpdir/scmroot/deepin-image-viewer
Cloning into '/var/lib/mock/dist-an23-dde-build-525866-78555/root/chroot_tmpdir/scmroot/deepin-image-viewer'...
$ git fetch origin ffcf8685d4f5d38355fa3df5308671a99e314821:KOJI_FETCH_HEAD
From https://gitee.com/lzq11122/deepin-image-viewer
 * [new ref]         ffcf8685d4f5d38355fa3df5308671a99e314821 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffcf868 Rebuild with LibRaw 0.22.1