Merge branch 'nd/switch-and-restore'

"git restore --staged" did not correctly update the cache-tree
structure, resulting in bogus trees to be written afterwards, which
has been corrected.

* nd/switch-and-restore:
  restore: invalidate cache-tree when removing entries with --staged

builtin/checkout.c

@@ -524,6 +524,8 @@ static int checkout_paths(const struct checkout_opts *opts,
 	/* Now we are committed to check them out */
 	if (opts->checkout_worktree)
 		errs |= checkout_worktree(opts);
+	else
+		remove_marked_cache_entries(&the_index, 1);
 
 	/*
 	 * Allow updating the index when checking out from the index.