(ITS#5732) slapo-rwm can free and reuse a filter in case of error

[ando]

Full_Name: Pierangelo Masarati
Version: HEAD/re24/re23
OS: irrelevant
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (81.72.89.40)
Submitted by: ando


A fix is coming, along with the right fix to ITS#5731

p.