TypeError: a is undefined

[silure]

At turn 3971 (r17024):

ERROR: JavaScript error: simulation/ai/common-api/utils.js line 21
TypeError: a is undefined
  m.SquareVectorDistance@simulation/ai/common-api/utils.js:21:6
  m.NavalManager.prototype.moveApart/</<@simulation/ai/petra/navalManager.js:531:1
  m.EntityCollection.prototype.forEach@simulation/ai/common-api/entitycollection.js:136:3
  m.NavalManager.prototype.moveApart/<@simulation/ai/petra/navalManager.js:528:5
  m.EntityCollection.prototype.forEach@simulation/ai/common-api/entitycollection.js:136:3
  m.NavalManager.prototype.moveApart@simulation/ai/petra/navalManager.js:520:2
  m.NavalManager.prototype.update@simulation/ai/petra/navalManager.js:717:2
  m.HQ.prototype.update@simulation/ai/petra/headquarters.js:2055:2
  m.PetraBot.prototype.OnUpdate@simulation/ai/petra/_petrabot.js:123:3
  m.BaseAI.prototype.HandleMessage@simulation/ai/common-api/baseAI.js:81:2

[mimo]

In 17027:

delay the ownerShip only after the entity is spawned, fix #3422

[mimo]

Thanks for the report and the commands.txt file. r17027 fixes the bug itself, but there is still a problem with all these merchand ships trying to reach the dock for trading and blocking it. That's in the TODO list.