Fix included in qemu-kvm-3.1.0-6.module+el8+2711+98525d2b
With qemu-kvm-3.1.0-11.module+el8+2747+40c9b77e.ppc64le, Tested this scenario 100 times,and didn't hit this problem again.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2019:1293