$ git clone -n https://gitee.com/ywyw22/btrfs-progs /var/lib/mock/dist-an7_9-updates-build-192670-60696/root/chroot_tmpdir/scmroot/btrfs-progs
Cloning into '/var/lib/mock/dist-an7_9-updates-build-192670-60696/root/chroot_tmpdir/scmroot/btrfs-progs'...
$ git fetch origin 22e6b151372d813929317115583b187ac3153508:KOJI_FETCH_HEAD
From https://gitee.com/ywyw22/btrfs-progs
 * [new ref]         22e6b151372d813929317115583b187ac3153508 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22e6b15 optimise spec file