SDPA fails to ignore comments on first two lines

[odow]

From http://plato.asu.edu/ftp/sdpa_format.txt, bolded text below is not implemented:

2. The first line after the comments contains m, the number of constraint
   matrices. Additional text on this line after m is ignored.

3. The second line after the comments contains nblocks, the number of
   blocks in the block diagonal structure of the matrices. Additional text
   on this line after nblocks is ignored.

open("ex.sdpa", "w") do io
    write(io, """
"A sample problem.  
2 =mdim
2 =nblocks
2 2
10.0 20.0
0 1 1 1 1.0
0 1 2 2 2.0
0 2 1 1 3.0
0 2 2 2 4.0
1 1 1 1 1.0
1 1 2 2 1.0
2 1 2 2 1.0
2 2 1 1 5.0
2 2 1 2 2.0
2 2 2 2 6.0
""")
end
m = MOI.FileFormats.SDPA.Model()
MOI.read_from_file(m, "ex.sdpa")

# yields

ERROR: ArgumentError: extra characters after whitespace in "2 \"=mdim"