$ git clone -n https://src.fedoraproject.org/rpms/netpbm.git /var/lib/mock/f37-build-678499-76450/root/chroot_tmpdir/scmroot/netpbm
Cloning into '/var/lib/mock/f37-build-678499-76450/root/chroot_tmpdir/scmroot/netpbm'...
$ git reset --hard b221824812984f55cd9ee8a8685243b243d35301
HEAD is now at b221824 Update source files