Cloned from upstream: https://pagure.io/freeipa/issue/7228

On Fedora 27, build from master, git up-date-today.

I did a very typical installation of a single master plus one replica with no additional services:

Install on master: ipa-server-install -a password -p password -r EXAMPLE.COM -U
Install on replica1: ipa-replica-install --server master.example.com --domain example.com

I wanted to see how initialize left and right worked so I took a look at the topology:
```
# ipa topologysegment-find domain
------------------
0 segments matched
------------------
----------------------------
Number of entries returned 0
----------------------------
```
Oh, odd. Where is the agreement:
```
repica1 # ipa-replica-manage list -v replica1.example.com
master.example.com: replica
  last init status: None
  last init ended: 1970-01-01 00:00:00+00:00
  last update status: Error (0) Replica acquired successfully: Incremental update succeeded
  last update ended: 2017-10-30 17:00:04+00:00
```
UI confirms that there are two nodes and no connections.

How is this possible?

Domainlevel is 1

Even worse I used the UI to create a connection between master and replica1 and now I have TWO agreements:
```
replica1 # ipa-replica-manage list -v replica1-example.com
master.example.com: replica
  last init status: None
  last init ended: 1970-01-01 00:00:00+00:00
  last update status: Error (0) Replica acquired successfully: Incremental update succeeded
  last update ended: 2017-10-30 17:29:51+00:00
master.example.com: replica
  last init status: None
  last init ended: 1970-01-01 00:00:00+00:00
  last update status: Error (0) Replica acquired successfully: Incremental update succeeded
  last update ended: 2017-10-30 17:29:49+00:00

So now this is very, very bad.

# ipa topologysuffix-verify domain
====================================================
Replication topology of suffix "domain" is in order.
====================================================
```
Yeah, not so much.