report/view-column make-internal-option "report-list"

[Larry Evans]

I've copied view-column to scratch.scm to try and figure
how it works.  However, the "Contents" tab no longer
shows when attempting to modify options.

The code for view-column has:

     ;; the report-list is edited by a special add-on page for the
     ;; options editor.
     (opt-register
      (gnc:make-internal-option
       "__general" "report-list" '()))

When I change the last 2 lines to:

      (gnc:make-internal-option
       "__general" "report-list" '() #f))

I get the expected error about wrong number of args; hence,
I know that the "report-list" option is being registered.
I've looked at the make-internal-option in scm/options.scm;
however, that lead me to gnc:restore-form-generator, but
that didn't improve my understanding either.

I'd appreciate any suggestions about how to figure out why
the "report-list" option is showing up when I ask to change
the options.