$ git clone -n https://src.fedoraproject.org/rpms/mongo-c-driver.git /var/lib/mock/f31-build-56274-28209/root/chroot_tmpdir/scmroot/mongo-c-driver
Cloning into '/var/lib/mock/f31-build-56274-28209/root/chroot_tmpdir/scmroot/mongo-c-driver'...
$ git reset --hard 776a86519612016a650f63c389f4c57bb4191622
HEAD is now at 776a865 v1.14.0