fix(agent): be careful with the iterator when bidding
fix(agent): be careful with the iterator when bidding

giantswarm/fleet,improbable-io/fleet,jonboulle/fleet,WPMedia/fleet,bcwaldon/fleet,thepwagner/fleet,dalbani/fleet,hhoover/fleet,mookjp/fleet,wuqixuan/fleet,bviswana101/fleet,mwitkow-io/fleet,webwlsong/fleet,coreos/fleet,bcwaldon/fleet,endocode/fleet,jonboulle/fleet,mischief/fleet,dongsupark/fleet,improbable-io/fleet,wuqixuan/fleet,mwitkow/fleet,endocode/fleet,bcwaldon/fleet,paveltiunov/fleet,improbable-io/fleet,ecnahc515/fleet,endocode/fleet,ecnahc515/fleet,octoblu/fleet,coreos/fleet,dalbani/fleet,flandr/fleet,ecnahc515/fleet,giantswarm/fleet,dongsupark/fleet,bviswana101/fleet,paveltiunov/fleet,dongsupark/fleet,WPMedia/fleet,dalbani/fleet,hhoover/fleet,esatterwhite/fleet,mookjp/fleet,mischief/fleet,mwitkow/fleet,giantswarm/fleet,esatterwhite/fleet,flandr/fleet,webwlsong/fleet,mwhooker/fleet,jonboulle/fleet,octoblu/fleet,mwhooker/fleet,mwitkow-io/fleet,thepwagner/fleet,coreos/fleet