uac_reg_request_to mode 1 (compare by user) doesn't find anything
in modules_k/uac/uac_reg.c seems error in comparing
I think, in function reg_ht_get_byuser in string
if((it->r->h_uuid==hash) && (it->r->l_username.len==user->len)
&& (strncmp(it->r->l_username.s, user->s, user->len)==0))
should be h_user instead of h_uuid