Make log_tags not to dump the core if tags are not valid
Make log_tags not to dump the core if tags are not valid

heivi/fMBT,OMKR/fMBT,violep01/fMBT,rseymour/fMBT,pyykkis/fMBT,giantpinkwalrus/fMBT,yoonkiss/fMBT,mlq/fMBT,pyykkis/fMBT,CosminNiculae/fMBT,giantpinkwalrus/fMBT,rseymour/fMBT,rseymour/fMBT,giantpinkwalrus/fMBT,01org/fMBT,pyykkis/fMBT,OMKR/fMBT,CosminNiculae/fMBT,pablovirolainen/fMBT,acozzette/fMBT,rseymour/fMBT,heivi/fMBT,pablovirolainen/fMBT,mixu-/fMBT,violep01/fMBT,OMKR/fMBT,pombreda/fMBT,mixu-/fMBT,mixu-/fMBT,pombreda/fMBT,pombreda/fMBT,acozzette/fMBT,heivi/fMBT,01org/fMBT,violep01/fMBT,heivi/fMBT,heivi/fMBT,CosminNiculae/fMBT,pyykkis/fMBT,pombreda/fMBT,yoonkiss/fMBT,acozzette/fMBT,01org/fMBT,mlq/fMBT,pombreda/fMBT,heivi/fMBT,rseymour/fMBT,CosminNiculae/fMBT,rseymour/fMBT,rseymour/fMBT,OMKR/fMBT,mixu-/fMBT,yoonkiss/fMBT,pablovirolainen/fMBT,pyykkis/fMBT,01org/fMBT,OMKR/fMBT,mlq/fMBT,giantpinkwalrus/fMBT,OMKR/fMBT,acozzette/fMBT,CosminNiculae/fMBT,giantpinkwalrus/fMBT,mlq/fMBT,CosminNiculae/fMBT,mlq/fMBT,mlq/fMBT,violep01/fMBT,yoonkiss/fMBT,pyykkis/fMBT,mixu-/fMBT,acozzette/fMBT,pablovirolainen/fMBT,pombreda/fMBT,pablovirolainen/fMBT,01org/fMBT,yoonkiss/fMBT,CosminNiculae/fMBT,heivi/fMBT,pombreda/fMBT,mlq/fMBT,pablovirolainen/fMBT,violep01/fMBT