StratCon: Force can deploy to a mission that does not exist

[vipersbrood]

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Environment

V 0.49.2
Windows
Java SDK16

Description

Able to deploy force to a battle not listed under briefings. Unable to end contract in StratCon. Error shows in log "java.lang.reflect.InvocationTargetException"

Files

mekhqlog.txt
Broodlings30340224.cpnx.gz

[NickAragua]

Fixed with PR #2756