fmbtlogger: fix deleting attributes from logged objs
fmbtlogger: fix deleting attributes from logged objs

01org/fMBT,violep01/fMBT,violep01/fMBT,yoonkiss/fMBT,01org/fMBT,violep01/fMBT,giantpinkwalrus/fMBT,01org/fMBT,giantpinkwalrus/fMBT,mixu-/fMBT,01org/fMBT,violep01/fMBT,mixu-/fMBT,mixu-/fMBT,yoonkiss/fMBT,giantpinkwalrus/fMBT,yoonkiss/fMBT,yoonkiss/fMBT,01org/fMBT,mixu-/fMBT,giantpinkwalrus/fMBT,yoonkiss/fMBT,mixu-/fMBT,giantpinkwalrus/fMBT,violep01/fMBT