The replacements break new user registration email notification
Adding a new member as admin and choosing to send a notification, fails in sending the email.
Not tested with auto-registration, but I suppose it is the same.
Reproductible on a default 0.9.5 or nightly install.
Logs show that arrays of patterns and expected corresponding replacements mismatch.
Comparing both arrays, it seems that the deadline is missing in the replacements.
The case is not handled : source:/galette/lib/Galette/Features/Replacements.php#L527
$c_replacements['deadline'] = null; on line 528 fixes the issue.