[daip] Bug in deselecting sources with minus signs?

[Andy Biggs]

Dear aips. I have been using SPLAT to create a new file that only 
contains my calibrators. I exclude the science target using 
SOURCE='-SMMJ14009'. When I run LISTR on it I get output like the following:

  localhos  LISTR(31DEC11)   5000     24-MAR-2011  15:13:39    Page    1
File = FRING AVG   .UVDATA.   1 Vol = 2  Userid = 5000
Freq =  1.626771250 GHz   Ncor =  2   No. vis =    892010
Scan summary listing

Scan      Source      Qual  Calcode Sub         Timerange          FrqID 
   START VIS  END VIS
    1 Not in SU table : 0000  HELP     1  0/22:30:08 -   0/22:31:00 
1       1        614
    2 Not in SU table : 0000  HELP     1  0/22:34:07 -   0/22:35:00 
1     615       1157

If I instead run SPLAT using SOURCE to do the opposite and instead 
*select* all the sources I want, then the source names do appear in 
LISTR and everything works as expected.

By the way, the data that is written out appear to be fine and I can run 
FRING on them and view the resulting SN table. If I try and select a 
source in SNPLT though, it fails with "NO DATA SELECTED".

I am running an up-to-date 31DEC11 on an Intel Mac.

Andy

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