Error opening MOL and RXN files with RBC/SUB/UNC queries

[Zhirnoff]

Ketcher fails to open MOL V3000 and RXN v3000 files with RBC/SUB/UNC features

Steps to Reproduce

1. Open Ketcher

2. Create or open attached MOL v3000 and RXN v3000 with RBC/SUB/UNS queries

3. Look at error message

Expected behavior
Attached file added to canvas without error messages

Actual behavior
Remote Error message: Convert error! struct data not recognized as molecule, query, reaction or reaction query
Standalone Error message: Convert error! Given string could not be loaded as (query or plain) molecule or reaction, see the error messages: 'molfile loader: unsaturation flag is allowed only for queries', 'RXN loader: bad header ', 'RXN loader: bad header ', 'molfile loader: invalid RBCNT value: -2'

Attachments

Indigo/Bingo version
Version 1.8.3.0-gded13d6dc-x86_64-linux-gnu-11.2.1
Ketcher related issue: epam/ketcher#1918

[even1024]

fixed in #969