$ git clone -n https://src.fedoraproject.org/rpms/libxmlb.git /var/lib/mock/f37-build-640603-71541/root/chroot_tmpdir/scmroot/libxmlb
Cloning into '/var/lib/mock/f37-build-640603-71541/root/chroot_tmpdir/scmroot/libxmlb'...
$ git reset --hard f5a971afa33f918a295a1b98403022ec896219e2
HEAD is now at f5a971a New upstream release