matchattr returns 0 with unknown handle and negative flag

[crazycatdevs]

In a script, I want to act only if user is not known as halfop or more.
Logical test:
if {[matchattr $handle -l|-l $chan]} { ... do stuff }

But if user is not known, matchattr returns 0, as if the user has the +l flag.
Culprits:

eggdrop/src/tcluser.c

Line 254 in e28a0a0

int ok = 0, nom = 0;

and

eggdrop/src/tcluser.c

Line 258 in e28a0a0

if ((u = get_user_by_handle(userlist, argv[1]))) {

If the user is not known, it returns default value which is 0.
Peharps could it be better to initialize it to -1 (user unknown), sets it to 0 if entering the condition and then do the stuff.