very recent mhttpd mangles spaces in URL encoding-decoding and I cannot create or delete entries in for
example "/experiment/edit on start". For example attempt to delete "/experiment/Pedestals Run"
<h1>Cannot find key Experiment/edit%20on%20start/Pedestals run</h1>
(notice "%20" instead of spaces. further navigation sometimes replaces the "%" sign with "%25" making it
even more mangled)
this used to work. looks like a call to URL unmangling went missing somewhere.