$ git clone -n https://src.fedoraproject.org/rpms/ghc-network-multicast.git /var/lib/mock/f41-build-838884-159867/root/chroot_tmpdir/scmroot/ghc-network-multicast
Cloning into '/var/lib/mock/f41-build-838884-159867/root/chroot_tmpdir/scmroot/ghc-network-multicast'...
$ git fetch origin 7bcaa8ef222e3f6abcc16a2bd13a8e9daecb0906:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-network-multicast
 * [new ref]         7bcaa8ef222e3f6abcc16a2bd13a8e9daecb0906 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7bcaa8e bump release