evil-args hangs in some cases, easily re-producible

[hubgitname]

Interesting package so I set out to test it on a c program.
downloaded the cscope codebase https://github.com/portante/cscope
In file main.c we have:

    if (linemode == NO) {
	signal(SIGINT, SIG_IGN);	/* ignore interrupts */

#if defined(KEY_RESIZE) && !defined(__DJGPP__)
	winch_action.sa_sigaction = sigwinch_handler;
	sigemptyset(&winch_action.sa_mask);
	winch_action.sa_flags = SA_SIGINFO;
	sigaction(SIGWINCH,&winch_action,NULL);
#endif

I was on the first argument of sigaction() call like so:
sigaction(SIGWINCH,&winch_a|ction,NULL);
invoked evil-jump-out-args took me to the beg of string sigaction.
another invocation and it hangs. probably continuously searching.
I had to issue C-g to ask it to give up.
Emacs 26.1 with the latest version of evil-args.
Please let me know if you're not able to recreate. I found
several instances where it would hang in that file.