I have a doveadm move that hangs, and cannot kill it. Leaving these files. Did I lose mails now?

-rw------- 1 testuser popusers 4.0M Jan 20 17:42 .temp.1548002572.P1969Q0M313023.host -rw------- 1 testuser popusers 3.9M Jan 20 17:42 .temp.1548002572.P1969Q1M313023.host -rw------- 1 testuser popusers 1017K Jan 20 17:42 .temp.1548002572.P1969Q2M313023.host drwx------ 1 testuser popusers 574 Jan 20 17:42 . -rw------- 1 testuser popusers 12M Jan 20 17:42 .temp.1548002572.P1969Q3M313023.host