$ git clone -n https://gitee.com/wency_cn/btrfs-progs_1764905342.git /var/lib/mock/dist-an23-build-492169-74553/root/chroot_tmpdir/scmroot/btrfs-progs_1764905342
Cloning into '/var/lib/mock/dist-an23-build-492169-74553/root/chroot_tmpdir/scmroot/btrfs-progs_1764905342'...
$ git fetch origin 3b2cdd69369af2a99e765936e84256ec4c1bb957:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/btrfs-progs_1764905342
 * [new ref]         3b2cdd69369af2a99e765936e84256ec4c1bb957 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b2cdd6 Update code from upstream