Ignore entity not found errors in childNodes conflict check (closes #2736) Entity not found is caused by subtle bugs elsewhere in the iD code and should not prevent users from saving their work because it can't be thoroughly conflict checked.
Ignore entity not found errors in childNodes conflict check (closes #2736)
Entity not found is caused by subtle bugs elsewhere in the iD code and should
not prevent users from saving their work because it can't be thoroughly
conflict checked.

1ec5/iD,edpop/iD,mapmeld/iD,andreic-telenav/iD,1ec5/iD,kartta-labs/iD,energiekollektiv/openmod.sh-id,kartta-labs/iD,mapmeld/iD,kepta/iD,digidem/iD,energiekollektiv/openmod.sh-id,kepta/iD,openstreetmap/iD,bagage/iD,bagage/iD,AndreasHae/iD,openstreetmap/iD,ngageoint/hootenanny-ui,morray/iD,AndreasHae/iD,digidem/iD,mapmeld/iD,kartta-labs/iD,morray/iD,edpop/iD,openstreetmap/iD,ngageoint/hootenanny-ui,andreic-telenav/iD,AndreasHae/iD,edpop/iD,zbycz/iD,1ec5/iD,bagage/iD,zbycz/iD,ngageoint/hootenanny-ui