$ git clone -n https://gitee.com/mgb01105731/freeimage.git /var/lib/mock/dist-an23-dde-build-426864-73001/root/chroot_tmpdir/scmroot/freeimage
Cloning into '/var/lib/mock/dist-an23-dde-build-426864-73001/root/chroot_tmpdir/scmroot/freeimage'...
$ git fetch origin 20547f41251f6caeea8fc4a660600af27ed00705:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/freeimage
 * [new ref]         20547f41251f6caeea8fc4a660600af27ed00705 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20547f4 rebuild