Empty headers appear when exporting to FASTA

[Zhirnoff]

Summary Empty headers appear when exporting to FASTA RNA sequence and RNA-monomers that are not a part of nucleotide or nucleoside

Steps to Reproduce

1. Open Macro mode
2. Add any RNA sequence and several RNA-monomers on canvas (see screenshot) or use attached file ketcher (51).zip
3. Press 'Save' button and select FASTA format

Expected behavior CHEMs and RNA-monomers that are not a part of nucleotide or nucleoside are ignored during export. As described in https://github.com/epam/Indigo/issues/1755

Actual behavior Empty headers appear when exporting to FASTA

Environment details:

• OS: Windows 11
  • Browser Chrome
  • Version 124.0.6367.79 (Official Build) (64-bit)
  • Indigo Version 1.20.0-rc.2

Attachments

Additional context Add any other context about the problem here.

[Zhirnoff]

Tested. Desktop:

• OS: Windows 11
• Browser Chrome
• Version 124.0.6367.79 (Official Build) (64-bit)

Ketcher version [Version 2.21.0-rc.3] Indigo version [Version 1.20.0-rc.3]