[Bug 40128] New: Wrong logic in print once

https://bugs.winehq.org/show_bug.cgi?id=40128

Bug ID: 40128
           Summary: Wrong logic in print once
           Product: Wine-staging
           Version: 1.9.3
          Hardware: x86
                OS: Mac OS X
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail]

dlls/wined3d/state.c: 369
~~~~
            if (factor || !once++) FIXME("Unhandled blend factor %#x.\n",
factor);
~~~~

There must be "&&" to print the FIXME really once.