bug report: tag is deleted by mistake

[Sam Louis]

hi all

   I have got a bug with CVS1.11.22
   The detail is 

   cvs up -dr tag a.txt
   cvs rm -rf a.txt
   cvs ci a.txt

   the tag is deleted from a.txt by mistake

   I don't want to delete the tag of a.txt :(

   And I have found that,
   
   the file is deleted on branch from cvs client , but cvs doesn't have the 
delete log ,and the history of cvs has the "R" record. 
 
   why?? I don't understand   

   would you help me ?  thx

                            Louis