I'm not sure how to reproduce this issue. It seems like if a message from person A exists in person B's inbox, and person A sends person B another message, person A can sometimes appear twice in the inbox. I'm not sure what other conditions need to be satisfied to reproduce this error. Some experimentation is needed.
I'm not sure how to reproduce this issue. It seems like if a message from person A exists in person B's inbox, and person A sends person B another message, person A can sometimes appear twice in the inbox. I'm not sure what other conditions need to be satisfied to reproduce this error. Some experimentation is needed.