$ git clone -n https://gitee.com/rabbitali/btrfs-progs.git /var/lib/mock/dist-an23-build-490376-74493/root/chroot_tmpdir/scmroot/btrfs-progs
Cloning into '/var/lib/mock/dist-an23-build-490376-74493/root/chroot_tmpdir/scmroot/btrfs-progs'...
$ git fetch origin ed5ac53d04676cc1b5c5baf142d366cff3d1307d:KOJI_FETCH_HEAD
From https://gitee.com/rabbitali/btrfs-progs
 * [new ref]         ed5ac53d04676cc1b5c5baf142d366cff3d1307d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed5ac53 Update code from upstream