$ git clone -n https://src.fedoraproject.org/rpms/logserial.git /var/lib/mock/f41-build-side-1-2812349-32940/root/chroot_tmpdir/scmroot/logserial
Cloning into '/var/lib/mock/f41-build-side-1-2812349-32940/root/chroot_tmpdir/scmroot/logserial'...
$ git fetch origin 776c6fd785a6ac70edaaa93882c39d25d0abc5ea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/logserial
 * [new ref]         776c6fd785a6ac70edaaa93882c39d25d0abc5ea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 776c6fd Orphaned for 6+ weeks