$ git clone -n https://src.fedoraproject.org/rpms/btrfs-progs.git /var/lib/mock/f37-build-side-32-misc-devel-109003-5791/root/chroot_tmpdir/scmroot/btrfs-progs
Cloning into '/var/lib/mock/f37-build-side-32-misc-devel-109003-5791/root/chroot_tmpdir/scmroot/btrfs-progs'...
$ git reset --hard b4034dc4286bf7571939f96aeb3a9d6bb2725c38
HEAD is now at b4034dc Update to 6.1.2