git: openjdk/loom: fibers: JFR: reset virtual thread property on object sample reuse

[duke]

Changeset: a84966d2
Author:    mgronlun <markus.gronlund at oracle.com>
Date:      2020-08-26 15:00:02 +0000
URL:       https://git.openjdk.java.net/loom/commit/a84966d2

JFR: reset virtual thread property on object sample reuse

! src/hotspot/share/jfr/leakprofiler/sampling/objectSample.cpp