Description of problem:
After having created a new set of accounts, I can not add a new vendor
from the new bill dialog.


Version-Release number of selected component (if applicable):
gnucash-1.8.8-2

How reproducible:
Always

Steps to Reproduce:
1. Create a new set of business accounts
2. From the menu, select Business->Vendors->New Bill
3. Press the 'Select...' button to select the vendor
4. There are no vendors yet, so press 'New Vendor'
5. Fill in the name and address, then press 'OK'
6. The list box now shows up in the dialog
7. Try to search for the vendor
  
Actual results:
guile crashes and GnuCash prints the messages (when started from a
console)
 
 
** CRITICAL **: file QueryObject.c: line 99
(gncQueryObjectGetParameterGetter): assertion `obj_name' failed.
 
** CRITICAL **: file QueryNew.c: line 637 (gncQueryRun): assertion
`q->search_for' failed.


Expected results:
find the vendor

Additional info:
When I create the first vendor by selecting Business->New Vendor
from the menu before entering a new bill, everything works.  I can
search for vendors and create new ones.