Editing filters fails with Python3

[vtoc]

Editing filters is failing because the "oldname" variable gets send to client as "b'value'" instead of "value" and will never match. Decoding it as UTF-8 before sending it to the client, fixes it.

--- views.py.orig      2021-09-16 13:42:52.795112059 +0200
+++ views.py   2021-09-16 13:43:52.096202663 +0200
@@ -186,7 +186,7 @@
         )
 
     fset = sc.getscript(setname, format="fset")
-    fname = smart_bytes(fname)
+    fname = smart_bytes(fname).decode("utf-8")
     f = fset.getfilter(fname)
     form = build_filter_form_from_filter(request, fname, f)
     ctx = build_filter_ctx(ctx, form)