Crash in Accounts receivable report

[Nigel Titley]

A freshly built 2.2.99 from trunk on Ubuntu Gutsy gives me the following 
  crash when I click on the "Total" amount for any line in the Accounts 
Receivable Ageing report.

Backtrace:
In unknown file:
    ?: 0* [gnc:owner-report-create # #]
In /opt/gnucash/share/gnucash/guile-modules/gnucash/report/owner-report.scm:
  733: 1* [owner-report-create # #]
  715: 2  (let ((type #)) (cond (# #) (# #) (# #) ...))
    ...
  706: 3  (let* (# # #) (gnc:option-set-value owner-op owner) ...)
  710: 4* [gnc:option-set-value #f #<swig-pointer GncOwner * -407d6d7c>]
In /opt/gnucash/share/gnucash/scm/options.scm:
  143: 5  (let ((setter (gnc:option-setter option))) (setter value))
  143: 6* [gnc:option-setter #f]
  114: 7  [vector-ref #f 6]

/opt/gnucash/share/gnucash/scm/options.scm:114:3: In procedure 
vector-ref in expression (vector-ref option 6):
/opt/gnucash/share/gnucash/scm/options.scm:114:3: Wrong type argument in 
position 1: #f