Following d592bf9cb6, paths were computed at the end of turn N, and then
messages were sent at the beginning of turn N+1. However, the path
requests were removed at the end of turn N and so weren't serialised,
and neither were computed paths. This meant rejoiners would OOS when the
game was serialised with pending path results.
To fix this in preparation for threading, the architecture needs to
change slightly so that requests are kept and serialised correctly, and
rejoiners can compute the paths after deserialisation, in order to send
the messages at the beginning of turn N+1.
Fixes#5604
Reported By: elexis
Differential Revision: https://code.wildfiregames.com/D2317
This was SVN commit r22979.
wraitii
92ad6a61fa