Why does «Copy Reference» in PHPStorm omit the initial part of the file path (relative to the project root) even with PHPStorm Composer options disabled?

[dmitrii_fediuk]

Delete all entries from «Languages & Frameworks» → «PHP» → «Include Path».:

Delete all entries from «Languages & Frameworks» → «PHP» → «Include Path».:

Removing «Include Path» may cause the following issues:

• How to remove «Include Path» entries from PHPStorm when the minus button is disabled?
• Why does PHPStorm restore deleted «Include Path» entries after manually removing the <component name="PhpIncludePathManager"> contents from .idea/php.xml even with Composer options disabled?
• How to prevent PHPStorm from restoring manually deleted include path entries even with Composer options disabled?

These issues are resolved in the linked articles.