Possible bugs in indexing

[dsyme]

The AI seems pretty confident this is a bug in indexing:

• https://github.com/dsyme/librapid/pull/48/files#diff-0167b793386379084a18553e1b6d8f303c6c24dbace11f7ae0e8aaf839e43cd5R36

At a quick glance of the code it does look suspicious