An IDT alias for one of the positions (5', internal, 3') must be unique in the whole library

[AlexeyGirin]

Steps to Reproduce

1. Open Macromolecules - Flex mode (clean canvas)
2. Go to console and execute following commands:

_Nucleotide1

await ketcher.updateMonomersLibrary('\n  -INDIGO-10092516272D\n\n  0  0  0  0  0  0  0  0  0  0  0 V3000\nM  V30 BEGIN CTAB\nM  V30 COUNTS 1 0 0 0 0\nM  V30 BEGIN ATOM\nM  V30 1 _Nucleotide1 10.1462 -10.525 0.0 0 CLASS=RNA SEQID=1\nM  V30 END ATOM\nM  V30 BEGIN BOND\nM  V30 END BOND\nM  V30 END CTAB\nM  V30 BEGIN TEMPLATE\nM  V30 TEMPLATE 1 RNA/_Nucleotide1/_Nucleotide1 NATREPLACE=RNA/A\nM  V30 BEGIN CTAB\nM  V30 COUNTS 17 16 7 0 0\nM  V30 BEGIN ATOM\nM  V30 1 H -5.196 0.75 0.0 0\nM  V30 2 C -4.33 0.25 0.0 0\nM  V30 3 C -3.464 0.75 0.0 0\nM  V30 4 C -2.598 0.25 0.0 0\nM  V30 5 C -1.732 0.75 0.0 0\nM  V30 6 C -0.866 0.25 0.0 0\nM  V30 7 C 0.0 0.75 0.0 0\nM  V30 8 C 0.866 0.25 0.0 0\nM  V30 9 C 1.732 0.75 0.0 0\nM  V30 10 C 2.598 0.25 0.0 0\nM  V30 11 C 3.464 0.75 0.0 0\nM  V30 12 C 4.33 0.25 0.0 0\nM  V30 13 H 5.196 0.75 0.0 0\nM  V30 14 H -4.33 -0.75 0.0 0\nM  V30 15 H -2.598 -0.75 0.0 0\nM  V30 16 H -0.866 -0.75 0.0 0\nM  V30 17 H 0.866 -0.75 0.0 0\nM  V30 END ATOM\nM  V30 BEGIN BOND\nM  V30 1 1 1 2\nM  V30 2 1 2 3\nM  V30 3 1 3 4\nM  V30 4 1 4 5\nM  V30 5 1 5 6\nM  V30 6 1 6 7\nM  V30 7 1 7 8\nM  V30 8 1 8 9\nM  V30 9 1 9 10\nM  V30 10 1 10 11\nM  V30 11 1 11 12\nM  V30 12 1 12 13\nM  V30 13 1 2 14\nM  V30 14 1 4 15\nM  V30 15 1 6 16\nM  V30 16 1 8 17\nM  V30 END BOND\nM  V30 BEGIN SGROUP\nM  V30 1 SUP 1 ATOMS=(1 1) XBONDS=(1 1) BRKXYZ=(9 0.433000 -0.250000 0.000000-\nM  V30  0.000000 0.000000 0.000000 0.000000 0.000000 0.000000) LABEL=H CLASS=-\nM  V30 LGRP\nM  V30 2 SUP 2 ATOMS=(1 13) XBONDS=(1 12) BRKXYZ=(9 -0.433000 -0.250000 0.000-\nM  V30 000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000) LABEL=H CLA-\nM  V30 SS=LGRP\nM  V30 3 SUP 3 ATOMS=(1 14) XBONDS=(1 13) BRKXYZ=(9 0.000000 0.500000 0.00000-\nM  V30 0 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000) LABEL=H CLASS-\nM  V30 =LGRP\nM  V30 4 SUP 4 ATOMS=(1 15) XBONDS=(1 14) BRKXYZ=(9 0.000000 0.500000 0.00000-\nM  V30 0 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000) LABEL=H CLASS-\nM  V30 =LGRP\nM  V30 5 SUP 5 ATOMS=(1 16) XBONDS=(1 15) BRKXYZ=(9 0.000000 0.500000 0.00000-\nM  V30 0 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000) LABEL=H CLASS-\nM  V30 =LGRP\nM  V30 6 SUP 6 ATOMS=(1 17) XBONDS=(1 16) BRKXYZ=(9 0.000000 0.500000 0.00000-\nM  V30 0 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000) LABEL=H CLASS-\nM  V30 =LGRP\nM  V30 7 SUP 7 ATOMS=(11 2 3 4 5 6 7 8 9 10 11 12) XBONDS=(6 1 13 14 15 16 12-\nM  V30 ) BRKXYZ=(9 -0.433000 0.250000 0.000000 0.000000 -0.500000 0.000000 0.-\nM  V30 000000 0.000000 0.000000) BRKXYZ=(9 0.000000 -0.500000 0.000000 0.0000-\nM  V30 00 -0.500000 0.000000 0.000000 0.000000 0.000000) BRKXYZ=(9 0.000000 --\nM  V30 0.500000 0.000000 0.433000 0.250000 0.000000 0.000000 0.000000 0.00000-\nM  V30 0) LABEL=_Nucleotide1 CLASS=RNA SAP=(3 2 1 Al) SAP=(3 12 13 Br) SAP=(3-\nM  V30  2 14 Cx) SAP=(3 4 15 Dx) SAP=(3 6 16 Ex) SAP=(3 8 17 Fx) NATREPLACE=R-\nM  V30 NA/A\nM  V30 END SGROUP\nM  V30 END CTAB\nM  V30 END TEMPLATE\nM  END\n>  <type>\nmonomerTemplate\n\n>  <aliasHELM>\n_Nucleotide1_HELM\n\n>  <idtAliases>\nbase=/_Nucleotide1/,ep3=/_Nucleotide1/,ep5=/_Nucleotide1/,i=/_Nucleotide1/\n\n$$$$\n', { format: 'sdf' })

Actual behavior
_Nucleotide1 unsplit nucleotide appears in the library with corrupted IDT alias defined, no error in the console

Expected behavior
No unsplit nucleotide appears in the library.
System throws an error in the console.

As per requirement:

2. An IDT alias for one of the positions (5', internal, 3') must be unique in the whole library.
   If a monomer/preset property is incorrect for whatever reason: skip that monomers, load the rest and throw an error with monomer name and details

Environment details:

• Ketcher Version 3.9.0-rc.1 Build at 2025-10-02; 16:35:40
• Indigo Version 1.37.0-rc.1.0-gca09660df-wasm32-wasm-clang-19.0.0
• Chrome Version 141.0.7390.55 (Official Build) (64-bit)
• Win10

Related issue: epam/Indigo#3161