[389-devel] Please review ticket 48266 (4th): Fractional replication evaluates several times the same CSN

[thierry bordaz]

Thanks to Noriko who ran coverity tests the previous fix was invalid.
Changing the call slapi_ch_free into slapi_ch_free_string.

https://fedorahosted.org/389/attachment/ticket/48266/0001-Ticket-48266-4-...