$ git clone -n https://src.fedoraproject.org/rpms/boost.git /var/lib/mock/f37-build-633515-69229/root/chroot_tmpdir/scmroot/boost
Cloning into '/var/lib/mock/f37-build-633515-69229/root/chroot_tmpdir/scmroot/boost'...
$ git reset --hard e938c8d9b3d81414f313826113169222ed6159ce
HEAD is now at e938c8d Rebuilt for ICU 71.1