Hi. I tried to comment out the function called in “modules/custom-redirection/custom-redirection.php” on line 93, and everything seems to work.
The function of the redirection model is a callback called by the hook “login_form” in login-form.php, so you can comment it out without a fatal error, BUT I really don’t know if this hack has some other effect.
According to the commented source, the function is including “_wp_original_referer” from the hidden fields of login form: maybe if a user wants to login to access to some protected resource, he were nota able to come back directly to the page he was looking at.