$ git clone -n https://src.fedoraproject.org/rpms/qbrew.git /var/lib/mock/f41-build-781751-13562/root/chroot_tmpdir/scmroot/qbrew
Cloning into '/var/lib/mock/f41-build-781751-13562/root/chroot_tmpdir/scmroot/qbrew'...
$ git fetch origin 17aa46451b0c8752c8818077ea5ca3d5bb219577:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qbrew
 * [new ref]         17aa46451b0c8752c8818077ea5ca3d5bb219577 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 17aa464 Eliminate use of obsolete %patchN syntax (#2283636)