Multiple sequences with the same taxon name in ortholog files breaks supermatrix concatenation

[rbturnbull]

Multiple sequences with the same taxon name in ortholog files breaks supermatrix concatenation.

In the fourth ortholog file (tests/test-data/results/orthologs/OG0000004.fa), there are four instances of the taxon 'Derbesia_sp_WEST4838':

• Derbesia_sp_WEST4838|0|KX808497.1|orf500
• Derbesia_sp_WEST4838|0|KX808497.1|orf422
• Derbesia_sp_WEST4838|0|KX808497.1|orf476
• Derbesia_sp_WEST4838|0|KX808497.1|orf497

In the alignment module, when everything else is stripped from the ID except the taxon name, there are four instances with the exact same ID and this stuffs up the concatenation into the supermatrix.

[rbturnbull]

This was fixed in an earlier commit