$ git clone -n https://src.fedoraproject.org/rpms/ghc-securemem.git /var/lib/mock/f40-build-743301-111169/root/chroot_tmpdir/scmroot/ghc-securemem
Cloning into '/var/lib/mock/f40-build-743301-111169/root/chroot_tmpdir/scmroot/ghc-securemem'...
$ git fetch origin 1c7278479d41077e1f83063d92d183da47d1bdba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-securemem
 * [new ref]         1c7278479d41077e1f83063d92d183da47d1bdba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c72784 bump release