$ git clone -n https://src.fedoraproject.org/rpms/dmtcp.git /var/lib/mock/f41-build-3152131-40629/root/chroot_tmpdir/scmroot/dmtcp
Cloning into '/var/lib/mock/f41-build-3152131-40629/root/chroot_tmpdir/scmroot/dmtcp'...
$ git fetch origin 8eee55eb206b01e0c5caa6c461fbd2347bdc545c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dmtcp
 * [new ref]         8eee55eb206b01e0c5caa6c461fbd2347bdc545c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8eee55e Bug 2318650 - dmtcp-3.1.2 is available