$ git clone -n https://src.fedoraproject.org/rpms/mmapper.git /var/lib/mock/f31-build-111028-34108/root/chroot_tmpdir/scmroot/mmapper
Cloning into '/var/lib/mock/f31-build-111028-34108/root/chroot_tmpdir/scmroot/mmapper'...
$ git reset --hard ef0f0a00a09df04deabb51401dfe3c8d14a28063
HEAD is now at ef0f0a0 Update to 19.04.0