add TODO notes about improving checkouts related errors

src/rebar_prv_lock.erl

@@ -40,6 +40,8 @@ do(State) ->
 
             OldLockNames = [element(1,L) || L <- OldLocks],
             NewLockNames = [element(1,L) || L <- Locks],
+
+            %% TODO: don't output this message if the dep is now a checkout
             rebar_utils:info_useless(OldLockNames, NewLockNames),
 
             {ok, State1};

src/rebar_prv_upgrade.erl

@@ -217,6 +217,7 @@ prepare_locks([Name|Names], Deps, Locks, Unlocks, Dict, AltDeps) ->
         false ->
             case rebar_utils:tup_find(AtomName, AltDeps) of
                 false ->
+                    %% TODO: output a different error if the app is a checkout
                     ?PRV_ERROR({unknown_dependency, Name});
                 _ -> % non-default profile dependency found, pass through
                     prepare_locks(Names, Deps, Locks, Unlocks, Dict, AltDeps)