Reconnecting arrows breaks replay

[hofstef]

Describe the bug
When you reconnect an arrow, the order in which the activities are displayed during replay is messed up.

To Reproduce
See attached .txt-file (rename to .dst)
bug in replay_2018-12-03.txt

Originally, there was an activity from Actor A to Object 1 to Actor B.
Then, I reconnected the arrow from Actor A to Object 2.
Then, I connected Actor A again with Object 1.
When I start the replay, the arrows and work objects from the original connection are shown (see attached screenshot)

Expected behavior
When replay is started, the arrows and work objects should be displayed in the correct order.

Desktop (please complete the following information):

• Browser

chrome

• OS: Windows 10