problem about bdb replication

[Database Administrator]

I have two room,room 1 ,room2,have bdbs A1,B1,C1 in room1 ,A2,B2,C2 in
room2 ,and all this servers are in one replication group,
A1 as master and others are replica,when the network connection
between room1 and room2 broken,servers in room1 elect A1 as master
and A2 as master in room2,then my part of my data will be writen to A1
and part will be to A2,I'm wandering what will happen
when connection between room1 and room2 is recoverd?????will the data
in all six servers be same??