#include "run-command.h"
 #include "parse-options.h"
 #include "sigchain.h"
-#include "transport.h"
 #include "submodule.h"
 #include "connected.h"
 #include "argv-array.h"
                fetch_prune_config = git_config_bool(k, v);
                return 0;
        }
-       return 0;
+       return git_default_config(k, v, cb);
 }
 
 static int parse_refmap_arg(const struct option *opt, const char *arg, int unset)
 
        transaction = ref_transaction_begin(&err);
        if (!transaction ||
-           ref_transaction_update(transaction, ref->name, ref->new_sha1,
-                                  ref->old_sha1, 0, check_old, msg, &err))
+           ref_transaction_update(transaction, ref->name,
+                                  ref->new_sha1,
+                                  check_old ? ref->old_sha1 : NULL,
+                                  0, msg, &err))
                goto fail;
 
        ret = ref_transaction_commit(transaction, &err);