fix parsing of atomic composition in excited species A(*)

[erwanp]

No description provided.

[codecov]

Codecov Report

Merging #25 (43d857e) into master (0ca9bd9) will increase coverage by 0.71%.
The diff coverage is 96.00%.

@@            Coverage Diff             @@
##           master      #25      +/-   ##
==========================================
+ Coverage   46.87%   47.58%   +0.71%     
==========================================
  Files          13       13              
  Lines         576      580       +4     
==========================================
+ Hits          270      276       +6     
+ Misses        306      304       -2     

Impacted Files	Coverage Δ
test/test_parsing_atoms.py	95.23% <95.23%> (ø)
qtplaskin/database.py	89.28% <100.00%> (+5.41%)	⬆️

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