EvaCheckInfo::m_framesToExpire for detected beacon is parsed as unsigned int with a negative value

[Caball009]

Eva.ini contains this event for a detected beacon:

EvaEvent BeaconDetected
  Priority = 2
  TimeBetweenChecksMS = 30000   ; 30 seconds
  ExpirationTimeMS  = -1        ; -1 means FOREVER

GeneralsGameCode/GeneralsMD/Code/GameEngine/Source/GameClient/Eva.cpp

Line 214 in 6818fae

{ "ExpirationTimeMS", INI::parseDurationUnsignedInt, nullptr, offsetof( EvaCheckInfo, m_framesToExpire) },

m_framesToExpire is parsed as unsigned int but has a negative value in the ini file. This works as intended, but it's unexpected and may stop working if scanUnsignedInt is refactored. It's the only instance that I could find where a negative value is parsed as unsigned integer.