$ git clone -n https://src.fedoraproject.org/rpms/qpid-dispatch.git /var/lib/mock/f41-build-781800-13562/root/chroot_tmpdir/scmroot/qpid-dispatch
Cloning into '/var/lib/mock/f41-build-781800-13562/root/chroot_tmpdir/scmroot/qpid-dispatch'...
$ git fetch origin 76d4e2a53f86fd137ed88a8006066b9f43e2480d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qpid-dispatch
 * [new ref]         76d4e2a53f86fd137ed88a8006066b9f43e2480d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 76d4e2a Eliminate use of obsolete %patchN syntax (#2283636)