slapd dies when modifiying string attribute

["Ailinger, Bernd" <Bernd.Ailinger@norcom.de>]

Hello,

when replacing a string attribute value with a value consiting of spaces
slapd dies ("Assertion 'normalized->bv_val < p' failed").

Are spaces no valid string data ? 

Thanks,

Bernd

(Suse Linux 8,  openLDAP 2.1.2)