$ git clone -n https://src.fedoraproject.org/rpms/garden.git /var/lib/mock/f41-build-1034984-18652/root/chroot_tmpdir/scmroot/garden
Cloning into '/var/lib/mock/f41-build-1034984-18652/root/chroot_tmpdir/scmroot/garden'...
$ git fetch origin 580ff05e2d25203154f3467d5639a633d6d96df6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/garden
 * [new ref]         580ff05e2d25203154f3467d5639a633d6d96df6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 580ff05 Eliminate use of obsolete %patchN syntax (#2283636)