My wife recently got a new phone number and the old one ceased to function. Now, whenever she sends me an SMS, they are not grouped to the same conversation as the previous messages. Furthermore, if I delete the old phone number from her phonebook entry, the old messages are visible only with the old phone number.

Is there any way to merge these conversations together, or somehow make the N900 to understand that I don't care what number the SMS came from, just that they came from one specific contact?

I probably could do sqlite3 el-v1.db and say UPDATE Events set uid=newnumber where uid=oldnumber (or something like that), but is there a more elegant solution or app?

Thanks.