Saaze zaps index string in URL

[eklausme]

I have a blog post with title .../2019/08-02-oracle-deadlock-when-using-bitmap-index/. This URL was shortened to .../2019/08-02-oracle-deadlock-when-using-bitmap-/.

To get rid of this behaviour I changed two files:

1. core/src/Commands/BuildCommand.php
2. core/src/Entries/Entry.php

I commented out below code.
For 1:

        if (substr_compare($entry->slug(), 'index', -strlen('index')) === 0) {
            $entryDir = preg_replace('/index$/', '', $entryDir);
        }

For 2:

        if (substr_compare($this->slug(), 'index', -strlen('index')) === 0) {
            $slug = preg_replace('/index$/', '', $slug);
        }

Currently I think that this code serves no other purpose then zapping this index-string at end of URL. But maybe there is another reason.