Bugs with split ponders

[jiguantong]

• [x] https://github.com/msgport/ormpipe/issues/101
• [x] https://github.com/msgport/ormpipe/issues/97
• [ ] https://github.com/msgport/ormpipe/issues/96
• [ ] https://github.com/msgport/ormpipe/issues/99
• [x] https://github.com/msgport/ormponder/issues/51
• [ ] https://github.com/msgport/ormpipe/issues/100