Michael Heerdegen <michael_heerdegen@web.de> writes:

> But there is a problem: if I now rename a file that isn't marked, I
> get the following error:
[...]
> `dired-mark-remembered' does not accept files that are not marked, see
> the docstring.  I guess this can easily be fixed by just removing
> those from the alist before calling `dired-mark-remembered'.

Here is a fix for the fix.