gnucash 1.8.1

[Johann George]

I just installed to Red Hat 9.0 from Red Hat 7.1.  I had previously been
using gnucash 1.4.9 and just switched to 1.8.1.  On my first use, I
converted my file to the new format and did nothing else.  When I now
run gnucash, it gives me:

** CRITICAL **: file gnc-transaction-xml-v2.c: line 443 (set_tran_date): assertion `tm' failed.  

I've looked at the fixes to subsequent version of gnucash and do not see
mention of this.  Should I be concerned?