[ccp4bb] pirate and R-free

[Bryan W. Lepore]

running pirate 0.4.9 w/ gui 1.4.4.2 ; the documentation suggests that 
R-free can be left unassigned - yet, pirate fails, claiming :

colin-wrk-free  /*/*/[Unassigned]
CCP4MTZfile: import_hkl_data - Missing column, crystal or dataset: 
/*/*/Unassigned

... so i really need R-free?

-bryan