fix build

include/cursors.hrl

@@ -8,7 +8,7 @@
                   first = [] :: [] | tuple() } ).
 -record(reader, { id    = [] :: [] | integer(),
                   pos   =  0 :: integer(),
-                  cache = [] :: [] | integer() | {term(),term()},
+                  cache = [] :: [] | integer() | {term(),term()} | reference(),
                   args  = 0 :: term(),
                   feed  = [] :: term(),
                   dir   =  0 :: 0 | 1 } ).

src/stores/kvs_st.erl

@@ -12,7 +12,6 @@ ref() -> kvs_rocks:ref().
 
 se(X,Y,Z)  -> setelement(X,Y,Z).
 e(X,Y)  -> element(X,Y).
-c3(R,V) -> se(#reader.cache, R, V).
 c4(R,V) -> se(#reader.args,  R, V).
 si(M,T) -> se(#it.id, M, T).
 id(T)   -> e(#it.id, T).