$ git clone -n https://src.fedoraproject.org/rpms/trafficserver.git /var/lib/mock/f41-build-1072472-19725/root/chroot_tmpdir/scmroot/trafficserver
Cloning into '/var/lib/mock/f41-build-1072472-19725/root/chroot_tmpdir/scmroot/trafficserver'...
$ git fetch origin d43bf771d880d65f4d7433185557df5eb39d1c7f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trafficserver
 * [new ref]         d43bf771d880d65f4d7433185557df5eb39d1c7f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d43bf77 Update to upstream 9.2.4