ih.. neume only displays one dot

[bbloomf]

The dots on a clivis that has a mora on each note are incorrectly placed right now. The dot for the first punctum should always be in the same vertical position it would be if that punctum were by itself, but positioned horizontally above the second dot. The second dot is already being positioned correctly.

Compare the output of Gregorio on this GABC:
(c4) ih(ih..) ig(ig..) if(if..) ie(ie..) id(id..) hg(hg..) hf(hf..) he(he..) hd(hd..)