[ccp4bb] refmac5 MMA bug

[Ed Pozharski]

I see a strange issue with a model that includes O1-methyl-mannose 
(three letter code MMA).  Basically, refmac fails and says that C7 is 
missing in the model while "CM" is absent from the library.  The problem 
is that there is no CM atom in the pdb file, while C7 is right there. 
This happens with Refmac_5.7.0029, and I see no obvious issues with the 
corresponding cif-file in the monomer library.

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Oh, suddenly throwing a giraffe into a volcano to make water is crazy?
                                                Julian, King of Lemurs