K 10
svn:author
V 8
sveinung
K 8
svn:date
V 27
2015-08-20T13:42:11.229837Z
K 7
svn:log
V 374
Check actor and target of new actions

Check that the actor unit and, where it applies, the target city, still
exists when performing the actions Join City, Bombard and Explode Nuclear.
Ruleset specific Lua code using the action_started_* callback may have
removed them. Adding checks for this was forgotten when the actions became
action enabler controlled.

See bug #23805
END