setup_unpack_trees_porcelain: take the whole options struct as parameter

diff --git a/builtin/read-tree.c b/builtin/read-tree.c
index 8bdcab11389e8b4facab355f27f0e1926134b86f..9ad1e66916545dd2aeeb110661e56edfa5921019 100644 (file)
--- a/builtin/read-tree.c
+++ b/builtin/read-tree.c
@@ -219,14 +219,9 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
         * "-m ent" or "--reset ent" form), we can obtain a fully
         * valid cache-tree because the index must match exactly
         * what came from the tree.
-        *
-        * The same holds true if we are switching between two trees
-        * using read-tree -m A B.  The index must match B after that.
         */
        if (nr_trees == 1 && !opts.prefix)
                prime_cache_tree(&active_cache_tree, trees[0]);
-       else if (nr_trees == 2 && opts.merge)
-               prime_cache_tree(&active_cache_tree, trees[1]);
 
        if (write_cache(newfd, active_cache, active_nr) ||
            commit_locked_index(&lock_file))